The examination
Ask a French chef to judge a stranger's cooking with one dish, and most will ask for an omelette. Not because it is difficult to make edible — a child can scramble eggs into something a family will eat — but because it is almost impossible to make well without genuine control of heat, and there is nowhere to hide a lapse.
Flour forgives a slack hand. A stew forgives an extra ten minutes. An egg does not: it is raw, then it is perfect, then it is rubber, and the distance between the second and third states can be under thirty seconds in a hot pan. Everything on this page is really one lesson taught six ways — recognising the exact moment an egg has set enough, and stopping.
Show me your omelette and I will tell you how you cook everything else.
Kitchen proverb, attributed to a hundred chefsWhat an egg is made of
A hen's egg is roughly 10% shell, 60% white and 30% yolk by weight. The shell is calcium carbonate, porous enough to breathe and to let odours in, which is one reason eggs are stored away from strong-smelling food. Underneath it, two membranes trap a pocket of air at the blunt end — small in a fresh egg, large in an old one, which is the whole basis of the float test below.
The white, or albumen (l'blanc), is around 90% water and 10% protein, mostly ovalbumin. Those proteins are folded into tight balls in a raw egg; heat, whisking or acid unfolds them, and once unfolded they bond to each other and trap water and air between them. That is the entire chemistry of cooking an egg: proteins unfold, then link into a net. Too little heat and the net never forms — the egg stays runny. Too much and the net squeezes tighter and tighter, forcing the trapped water back out — the egg turns rubbery and weeps.
The yolk is about 50% water, 30% fat and 16% protein, plus the lecithin that makes it an emulsifier without equal in the kitchen. Its proteins set at a slightly higher temperature than the white's, which is the whole reason a soft-boiled egg is possible at all: there is a real window in which the white has set and the yolk has not.
| Temperature | White | Yolk |
|---|---|---|
| 60°C | Begins to turn milky and opaque | Still liquid |
| 65°C | Soft, barely holding together | Still liquid, thickening slightly |
| 68–70°C | Fully set, tender | Begins to thicken and turn matte |
| 70–75°C | Firm, still moist | Custard-thick, still flows |
| 80–85°C | Firm to slightly rubbery | Fully set, crumbly if overshot |
| Above 85°C | Rubbery, weeping water | Chalky, the surface turns grey-green |
That ring around an overcooked hard yolk is iron sulphide — iron from the yolk reacting with sulphur from the white under prolonged high heat. It is harmless to eat and entirely a sign of poor technique: too long in the pot, or cooled too slowly afterwards. See the boiling method below to avoid it every time.
Buying, storing, the float test
Buy the best eggs you can reasonably afford — free-range at minimum, and from a source you trust for turnover, since freshness matters more to an egg than almost any other food in the larder. A fresh egg holds its shape in the pan, sits tall when fried, and whips whites into a finer, more stable foam. A tired egg spreads thin, and its whites collapse faster than they should.
Store eggs in the refrigerator, pointed end down — this keeps the air pocket at the top, away from the yolk, and slows its enlargement. Take out only what you need twenty to thirty minutes before cooking; room-temperature eggs whip further and are far less likely to crack a shell from thermal shock when lowered into simmering water.
The float test
Lower the egg gently into a bowl or glass of cold water, deep enough for it to hang freely.
CueLies flat on the bottom: very fresh, under a week old. Stands up at an angle on the bottom: about one to two weeks, still excellent for everything, ideal for poaching. Bobs upright with the top breaking the surface: three weeks or more — fine for baking or hard-boiling, where a slightly larger air pocket actually helps the peel. Floats clear of the bottom: discard it.The sniff and the crack
The float test is a proxy, not a certainty. Crack any egg you are unsure of into a small bowl on its own before it joins others — a sulphurous smell or a flat, spread-out white with no structure means it goes down the drain, not into the pan.
A very fresh egg is best for poaching and frying, where you want the white to cling tightly to the yolk rather than feathering across the pan. A week-old egg is genuinely better for hard-boiling, because the shell separates more cleanly from the white once the air pocket has grown a little — see peeling, below.
The French omelette
The omelette roulée — rolled omelette — is pale, soft-set, faintly glossy, and rolled into a plump cigar with no colour on it at all. It takes under a minute to cook and a hundred attempts to get right, and it is the single dish most likely to be asked of you in a professional kitchen trial.
Whisk hard, season late
Three eggs per person, cracked into a bowl. Whisk vigorously with a fork or small whisk for a full thirty seconds — you want the whites and yolks fully combined, with a little air beaten in, not just broken up. Salt just before cooking, not before: salted raw egg left standing starts to break down the proteins and toughens the finished omelette.
Small pan, real heat, real butter
A 20–22 cm pan for two to three eggs — too large a pan spreads the mixture thin and it overcooks before it can roll. Melt a walnut of butter over medium-high heat until it foams and the foam just starts to subside, which is the moment it is hot enough without being brown.
CueThe butter should smell nutty, not sharp or dark. If it browns, wipe the pan and start again — burnt butter tastes of the whole omelette.Pour, then pull the curds inward constantly
Pour in the eggs. Wait three seconds for the base to set, then, holding a fork flat, stir rapidly in small circles while shaking the pan gently with the other hand, drawing the set curd from the edges to the centre and letting the raw egg run out to the sides to meet the hot pan.
Keep this moving for perhaps fifteen seconds. You are aiming for something between scrambled and set: small, soft curds throughout, with the surface still glistening and a little runny.
CueStop the moment the surface stops looking wet and starts looking merely moist. There should be no colour anywhere on the underside — lift an edge with the fork to check.Fold and roll off the pan
Tilt the pan away from you at 45°, so the omelette slides towards the far lip. Use the fork to fold the third of the omelette nearest the handle over the middle, then tip the pan further and let the whole thing roll over itself onto a warm plate, landing seam-side down. The residual heat finishes the very centre in the seconds it takes to plate.
CueA good rolled omelette is a plump, three-fold cigar, pale gold, with no brown anywhere and a faint sheen from the butter. Cut into it and the centre should still be very softly set, almost creamy.A last brush of butter
Rub the surface with a small knob of cold butter on the tip of a knife, or a folded paper towel dipped in melted butter. It is what gives a French omelette its shine and its last note of richness.
A thermometer helps nobody here — by the time you have read it the omelette has moved past the state you were checking for. The whole method is designed to be judged by eye and by the sound of the fork against the pan, which is why it is taught as a physical drill, not a recipe with timings.
The country omelette, and fillings
Set the rolled omelette against its opposite: the omelette paysanne (country or flat omelette), which is not rolled at all, takes colour without apology, and is closer to a Spanish tortilla or an Italian frittata than to the version above. It exists for fillings too heavy or too wet to roll — potato, bacon, sorrel, a whole diced ratatouille.
- Fillings go in first, not last. Cook them separately until done — potatoes soft, bacon rendered, mushrooms dry — and warm them in the pan before the eggs go in. A raw or wet filling folded into a rolled omelette steams the eggs from the inside and ruins the texture.
- The flat omelette sets slowly. Lower heat, no stirring once the eggs are poured over the filling, and finish it under a low grill or with a lid for the last minute so the top sets without a hard, dark base.
- Fines herbes is the classic rolled filling. A fine mince of parsley, chervil, chives and tarragon in equal parts, stirred into the eggs before they go in the pan — see chiffonade and herb work for the cutting. Cheese, ham and mushroom duxelles are the other classical fillings; scatter them over the curds just before the fold, never before, so they warm through without weeping into the pan.
Scrambled eggs, the French way
French scrambled eggs — œufs brouillés — bear almost no resemblance to the fast, high-heat, dry curds common elsewhere. They are cooked slowly, in a small heavy pan, over low heat, moved without pause, and taken off the heat while they still look slightly underdone, because the pan's own heat finishes them on the way to the plate.
Low heat from the very start
Butter in a small heavy-based saucepan or pan, set over the lowest heat your hob offers. Add the beaten, seasoned eggs cold, straight from the fridge if you like — the slower the rise in temperature, the finer the curd.
Stir without stopping
A wooden spoon or silicone spatula, moving continuously across the base and into the corners. The mixture will look like nothing is happening for what feels like a long time — do not raise the heat to hurry it.
CueSmall, glossy, custard-like curds forming slowly, never a hard set anywhere. If you see any part turning matte and dry, the heat is too high.Take it off before it looks done
Pull the pan from the heat while the eggs still look about 80% set and slightly loose — they will continue cooking from residual heat for another ten to fifteen seconds even off the stove.
Mount with butter or cream
Off the heat, stir in a knob of cold butter or a spoonful of crème fraîche. This is monter au beurre — the same finishing move used to gloss a sauce — and it stops the residual cooking dead while adding shine and richness. Season with salt only at this final stage; salted early, eggs release water and scramble thin and grey rather than thick and glossy.
Egg proteins keep tightening for as long as they are hot, whether the pan is on the heat or not. There is no stage at which scrambled eggs are "finished cooking" in the way a steak rests — they are always drifting towards rubber, and the only defence is pulling them off early and serving at once.
Œufs en cocotte
An egg baked in cream, in its own small dish, set over a water bath — the gentlest cooking method on this page and a useful one for a nervous beginner, because the water bath makes overcooking slow rather than sudden.
- Butter a small ramekin generously. Add a spoonful of cream, or a little sautéed spinach or ham if you like, then break in one egg.
- Set the ramekin in a roasting tin, pour boiling water halfway up its side, and cover the tin loosely with foil.
- Into an oven at 180°C (350°F, gas mark 4) for eight to ten minutes.
- CueThe white is fully opaque and just set; the yolk still moves as a soft dome when the dish is nudged. Carry over is real here too — pull it a shade early.
The four boiled states
Boiling is not one technique but four, distinguished only by time, and the single most common domestic failure — the grey-green ring, the rubbery white — comes from treating them as interchangeable. Two further decisions matter as much as the clock: starting the egg in cold water or lowering it into already-boiling water, and how it is cooled afterwards.
| State | From cold water, to the boil then off heat, covered | Lowered into boiling water | Result |
|---|---|---|---|
| Coddled / very soft | 30 seconds off the heat | 3 minutes | White barely set at the edge, yolk entirely liquid |
| Soft-boiled (à la coque) | 3–4 minutes off the heat | 4–5 minutes | White fully set, yolk liquid and warm — the classic egg cup egg |
| Mollet | 6 minutes off the heat | 6–7 minutes | White fully set, yolk thick and just holding its shape when peeled |
| Hard-boiled (dur) | 10–11 minutes off the heat | 10–12 minutes | White and yolk both fully set, yolk pale and unbroken by a grey ring |
Starting eggs in cold water and bringing them up together gives a gentler, more even set and is more forgiving of an odd-sized egg — this is the method timed above. Lowering a room-temperature egg into already-simmering water gives more precise, repeatable timing once you know your own hob and pan, which is why professional kitchens prefer it. Either works; pick one and learn its timings rather than switching between them.
A hard boil knocks the eggs against each other and the pan, cracking shells and letting white leak out. Bring the water to the boil, then take it straight down to a bare simmer — a few slow bubbles, not a churn — for the whole cooking time.
Peeling
The moment the timer sounds, lift the eggs into a bowl of iced water and leave them a full five minutes. This does two things: it stops the cooking dead — the reason for the grey-green ring is often not overcooking alone but a slow cool-down that lets the reaction continue — and it contracts the white away from the shell membrane, which is what actually makes peeling easy.
Crack the shell all over on a hard surface, then peel starting at the wide, blunt end, where the air pocket sits and gives you a place to get a thumbnail under the membrane. Peel under a thin, running stream of cold water if the shell is clinging, working the water between shell and white. Eggs a week to ten days old peel far more cleanly than eggs laid yesterday, for the reasons given under the float test above — this is worth planning for if you know you are boiling a batch.
Poaching without any gadget
No cling film, no silicone cup, no perforated spoon sold specifically for the job — just a wide pan, water, vinegar, and a fresh egg. A poached egg is a white cooked just enough to hold a soft, wobbling yolk inside it, with no shell and no dish to shape it.
Fresh eggs, always
Poaching is the technique most exposed by a tired egg: the thin outer white of an older egg has already begun to separate from the thick white nearest the yolk, and it will feather into ragged strands the moment it hits hot water no matter what else you do. Use the freshest eggs you have, and crack each one into its own cup or small bowl before it goes anywhere near the pan.
Water, vinegar, a bare simmer
A wide, deep pan of water — deep enough that the egg can hang without touching the base — with a good splash of white wine vinegar or plain vinegar, about one tablespoon per litre. The acid speeds the white's proteins into setting, tightening it before it has time to spread. Bring to the boil, then down to a bare simmer: small bubbles only, never a boil, which would tear the egg apart.
Spin the water, slide in the egg
Stir the water briskly with a spoon to set up a whirlpool, then slide the egg gently into the very centre, at the point of least movement. The spiral wraps the loose white strands around the yolk as it falls and sets, instead of letting it scatter.
Three minutes, then lift and check
Three minutes for a classic soft, wobbling yolk; nearer four for a firmer set. Lift with a slotted spoon and rest it briefly on a folded paper towel or clean cloth to drain.
CuePress the egg very lightly with a fingertip. It should give, springing back slowly, with a clear sense of liquid moving beneath a set surface. No give at all means the yolk is already firm.Trim and hold for service
Trim any ragged trailing white with kitchen scissors for a neat, oval shape. To poach ahead — genuinely useful for serving several at once, as for œufs pochés or a poached egg over asparagus — lift the just-set eggs into a bowl of cold water and hold them there, refrigerated, for up to a day. To serve, lower them into a pan of hot, not boiling, water for 30–60 seconds to warm through, then drain.
Cling-film pouches and silicone poaching cups exist to rescue eggs that are not fresh enough for the whirlpool method. Buy better eggs instead — the whirlpool costs nothing and gives a properly ragged, handmade-looking white, which is exactly what a poached egg should look like.
Œufs mollets
Halfway between soft-boiled and poached in effect: a boiled egg, timed to six minutes from cold water off the heat (see the table above), then peeled while still warm with real care, since the white is barely firmer than the yolk beneath it. Peel under a trickle of cold water, starting from the blunt end.
The point of the œuf mollet is that it can be peeled and handled whole — unlike a poached egg — while keeping a yolk almost as soft. It is the classical garnish for a rich sauce or a bed of spinach, where a fully hard yolk would sit inert on the plate and a poached egg's ragged edges would look wrong.
The egg as a thickener
Egg yolks thicken a sauce by the same mechanism that sets a boiled egg: their proteins unfold with heat and link into a network, in this case within a liquid rather than around themselves, turning it silky and slightly denser rather than solid. The technical name for this is a liaison — sauces finished this way include a classic velouté, a blanquette, and any custard-based dessert.
Whisk the yolks in a bowl, off the heat
Never add cold yolks directly to a hot pan. Whisk them first in a bowl, sometimes with a spoonful of cream, until loosened and pale.
Temper: hot liquid into the yolks, not the reverse
Ladle a small amount of the hot sauce or liquid into the yolks, whisking constantly, then a second ladle, then a third — each addition raising the yolks' temperature gradually rather than shocking them. This is tempering, and it is the one step that separates a silky liaison from scrambled egg floating in a sauce.
CueThe yolk mixture should feel warm to the back of a finger, not hot, before it goes anywhere near the main pan.Return to low heat, stir without stopping
Pour the tempered yolks back into the pan of sauce over low heat, and stir constantly, in the same way as scrambled eggs, with the pan never left unattended.
Watch the spoon, not the clock
The sauce is done the moment it coats the back of a spoon and holds a clear line when you draw a finger through it — nappe. This can happen well below a simmer; a liaison-thickened sauce must never boil, or the yolk proteins overshoot straight into curds, the same failure as an overheated scramble, but now dispersed through your whole sauce with no way to fix it.
Once yolk proteins have overcooked and clumped, no amount of stirring reunites them — you are chasing solid curds through a thin liquid. The only real rescue is to strain the sauce through a fine sieve to remove the curds, accept a thinner result, and start the liaison again at lower heat next time.
The egg as an emulsifier
Lecithin in the yolk lets an egg hold fat and water together in a stable suspension — the whole basis of mayonnaise, hollandaise and aïoli. That is a large enough subject to earn its own page: see Emulsions for how a yolk binds oil or butter into a sauce, and how to save one that has split.
Whipping whites by hand
A stand mixer makes this faster; it does not make it possible only that way. Whites have been whipped by hand with a balloon whisk and a bowl for as long as there has been an egg white to whip, and doing it once by hand teaches you exactly what a mixer's beater is hiding from you — the moment a foam goes from soft to firm to broken.
A spotless bowl, whites at room temperature
Any trace of yolk, grease or water stops whites whipping properly — fat coats the protein strands and prevents them unfolding into a stable net. Wipe the bowl and whisk first with a little vinegar or lemon juice on a cloth, then dry. Separate eggs well ahead of time and let the whites come to room temperature; they whip to a greater volume warm than cold.
A wide bowl, a real balloon whisk
Use the widest bowl you own — you are folding as much air as possible into the whites, and a narrow bowl restricts the whisk's arc. A large balloon whisk, held loosely, moving in a full, wide, fast circle that drags the whisk right up out of the mixture on each pass, aerating rather than just stirring.
Soft peaks, then sugar or salt, then firm peaks
Whip until the foam holds a soft peak that gently folds over when the whisk is lifted — this is the stage for folding into a soufflé base or a mousse. For meringue, add sugar a spoonful at a time from this point, still whisking, until the peak stands fully upright and glossy with no droop at all.
CueTip the bowl. Soft peaks slide slowly; firm peaks do not move even held upside down over your head. Stop the moment they reach firm — beyond it, the foam turns grainy and starts to weep a thin, watery liquid as the protein net over-tightens and squeezes water out, exactly as with an overcooked white in a pan.Fold, do not stir
Add a third of the whipped whites to the heavier mixture first and beat it in without ceremony, to loosen the base. Then add the rest and fold: a large metal spoon or spatula, cutting down through the centre, along the base, and up the side, turning the bowl a quarter turn between each fold. You are combining, not smoothing — stop as soon as no streaks remain. Every extra fold knocks air back out.
Copper ions from an unlined copper bowl bond weakly with the egg-white proteins and genuinely produce a more stable foam that is harder to overwhip — an old and correct piece of French kitchen lore, not folklore. It is not necessary. A spotlessly clean stainless or glass bowl, plus a pinch of cream of tartar or a few drops of lemon juice added at the soft-peak stage, gives nearly the same stability by acidifying the whites in the same way vinegar does for poaching. Buy a copper bowl if you fall in love with meringue; do not feel undersupplied without one.
Separating eggs by hand
Crack the shell firmly on a flat surface, not the rim of the bowl, which drives shell fragments in. Break the egg open over a small bowl and pass the yolk gently back and forth between the two half-shells, letting the white fall through into the bowl below each time, until only the yolk remains. Work over a small bowl, not the final mixing bowl, so one broken yolk does not ruin a whole batch of whites — decant each white into the main bowl only once its yolk has come through clean.
When it goes wrong
The rolled omelette browns before it sets
Pan too hot, or butter allowed to darken before the eggs went in.
FixWipe the pan, lower the heat a notch, and use fresh butter taken off the heat the moment it foams. Colour on a French omelette is always a fault, never a style.
Scrambled eggs turn grey and watery
Salted too early, or left on the heat past the point of being just underdone.
FixSalt only at the very end, off the heat, and pull the pan while the eggs still look slightly loose — residual heat does the rest.
Hard-boiled yolks have a grey-green ring
Overcooked, or cooled too slowly after cooking, letting sulphur and iron keep reacting.
FixFollow the timings in the table exactly and plunge into iced water the instant the timer sounds, for a full five minutes.
Boiled eggs will not peel cleanly
The egg was very fresh, or not cooled properly, so the white still clings tightly to the membrane.
FixUse eggs a week to ten days old for boiling and save the freshest for poaching and frying. Peel under running water starting at the blunt, air-pocket end.
Poached eggs feather into ragged strands
The egg was not fresh enough, the water was boiling rather than simmering, or there was no whirlpool to hold the white together.
FixUse the freshest eggs available, add vinegar, keep the water at a bare simmer, and slide the egg into a spinning centre rather than still water.
A liaison-thickened sauce goes grainy
The yolks were added cold and direct, or the pan was allowed to boil after they went in.
FixTemper the yolks with hot liquid gradually, off the heat, then return to low heat and stir without stopping until it coats a spoon — never let it simmer.
Whipped whites will not hold a peak, however long you whisk
A trace of grease or yolk in the bowl, or the whites were whipped straight from the fridge.
FixWipe bowl and whisk with vinegar and dry thoroughly; start again with fresh whites at room temperature. There is no rescue for a genuinely greasy bowl mid-whisk.
An egg has nothing to hide behind — no marinade, no sauce, no long braise to cover a mistake. Learn to read it and you have learned to read heat itself.
End of Stage One, Lesson Four