The Sauce TreeL'Arbre des Sauces

Carême, Escoffier, and the point of it

Every sauce on this page is either one of five mothers, a child of one of them, or an outsider that never joined the family at all. Learn the shape of the tree once and a French menu stops being a list of foreign words and becomes a set of recognisable relationships.

The idea of organising sauces into a family tree belongs to Marie-Antoine Carême, the early nineteenth-century chef who first tried to bring order to the enormous, chaotic sauce repertoire of French cooking. Carême proposed four sauces mères — mother sauces — each built on a distinct base and thickening method, from which every other sauce in the kitchen could be said to descend by a small, describable addition. Nearly a century later, Auguste Escoffier, codifying French cuisine for a new era of grand hotel kitchens, revised the list to five, promoting sauce tomate to full mother status alongside Carême's original set.

The classification was never decoration. Before it, a cook memorised hundreds of sauces as separate recipes. After it, a cook memorised five methods and a much shorter list of additions — and could reconstruct, or even invent, a plausible sauce for an unfamiliar dish by reasoning from first principles: what protein is this, what is the classical mother for that context, what garnish or reduction would suit it. It is a system for thinking, not merely a filing scheme, and it is why this page exists as a companion to the technique page rather than a duplicate of it: that page teaches you to make a roux and mount a butter sauce; this page teaches you where any given sauce sits and what it is related to.

Béchamel

Base — milk. Thickener — a white roux (equal parts butter and flour, cooked briefly with no colour). Ratio — roughly 60 g butter and 60 g flour to 1 litre milk for a medium sauce, adjusted up towards 90 g each for a thick binding sauce (a soufflé base, a gratin) and down towards 40 g each for a thin coating sauce.

Working method, in brief — melt the butter over gentle heat, stir in the flour, cook two minutes without colouring to lose the raw taste, then whisk in warm milk gradually, off the heat at first to prevent lumps, returning to a gentle simmer for eight to ten minutes, stirring often, until it coats the back of a spoon and no longer tastes of flour. Season with salt, white pepper, and a scrape of nutmeg. Full method and troubleshooting at Sauce Making.

Faults specific to béchamel — a raw, floury taste (undercooked roux, or milk added too fast and too hot, which shocks the starch before it can cook through); a skin forming on top as it cools (press cling film directly onto the surface, or dot with butter and stir it through as it cools); scorching on the base of the pan (heat too high, or too little stirring — use the heaviest pan you own).

Velouté

Base — a light white stock: chicken, veal, or fish, never beef. Thickener — a blond roux, cooked a shade longer than béchamel's so it takes on the faintest straw colour but no browning. Ratio — the same 60 g each of butter and flour to 1 litre stock as béchamel, since the thickening chemistry is identical; only the liquid changes.

Working method, in brief — cook the roux to a pale sandy colour, whisk in hot stock gradually, simmer thirty to forty minutes, skimming, until silky and reduced by roughly a fifth. The stock must be good — a velouté is only ever as good as the stock behind it; see Stocks.

Faults specific to velouté — tasting thin and one-note (weak or under-reduced stock — no amount of roux disguises a poor stock, it only thickens the poverty); a grey, dull colour (roux browned too far, or a stock with too much impurity left unskimmed); separating into a thin liquid with floating fat once cooled and reheated too briskly (reheat gently, whisking, never at a hard boil).

Espagnole

Base — brown veal or beef stock, built on roasted bones. Thickener — a brown roux, cooked to a genuine hazelnut colour, plus a mirepoix (carrot, onion, celery) and tomato purée browned alongside it for depth and colour. Ratio — roughly 90 g each of butter and flour to 1.5 litres brown stock, with 250 g rough-cut mirepoix and two tablespoons tomato purée, simmered and skimmed for at least two hours, traditionally far longer.

Working method, in brief — brown the mirepoix well in the same fat you will make the roux in, add tomato purée and cook briefly to lose its rawness, make and colour the roux separately or in the same pot, whisk in the hot brown stock, and simmer at the barest tremor for two hours or more, skimming constantly, until deeply flavoured and glossy. Nearly every kitchen today reduces espagnole further with more stock into demi-glace before using it, which is itself listed as its own derivative below because that is how completely it has taken over the mother's role in practice.

Faults specific to espagnole — a bitter, scorched taste (the roux or the mirepoix caught and burned rather than browned — there is a narrow window between hazelnut and burnt, and it does not forgive an unwatched pot); a thin, greasy sauce that never develops body (insufficient reduction time — espagnole rewards hours, not an evening, and there is no shortcut); a muddy rather than glossy brown (stock not skimmed enough during the long simmer).

Sauce Tomate

Base — tomatoes, ideally ripe and fresh, tinned plum tomatoes an entirely honest substitute out of season. Thickener — none, in the modern reading; the sauce thickens by reduction and by the natural pectin and pulp of the tomato itself. Escoffier's original version used a light roux and a piece of salt pork or bacon for savour, but the roux has fallen away almost everywhere as the tomato itself does the work. Ratio — roughly 1.5 kg tomatoes, a small mirepoix, a bulb of garlic halved, a bay leaf and thyme, reduced by half over forty-five minutes to an hour.

Working method, in brief — sweat the mirepoix in olive oil or a little pork fat without colouring, add the tomatoes (crushed by hand, never blitzed to a purée at this stage — the texture should come from cooking down, not from a machine), garlic and herbs, and simmer uncovered until thick, stirring to prevent catching, then pass through a sieve for a smooth, formal sauce or leave rustic for a home one.

Faults specific to sauce tomate — tasting sharp and acidic (under-ripe or poor tomatoes, or too little cooking time to mellow the acid — a small pinch of sugar corrects a genuinely poor batch but should not be routine); watery and thin (not reduced enough, or tomatoes with excessive water content — salt the tomatoes and let them sit twenty minutes first to draw some off if this is a recurring problem); bitter (garlic or tomato paste browned rather than sweated).

Hollandaise

Base — clarified or whole melted butter. Thickener — an emulsion: egg yolks whisked over gentle heat with a little acidic liquid (water and lemon, or a vinegar reduction) until pale and ribboned, then butter worked in gradually so the fat suspends as microscopic droplets in the yolk rather than pooling. Ratio — roughly 3 yolks to 200–250 g clarified butter and a tablespoon of acid liquid, enough for four as a sauce.

Working method, in brief — whisk yolks with the acid liquid over a bain-marie or the very lowest direct heat until thick, pale, and holding a ribbon trail, remove from the heat, and add the warm melted butter in a very thin, steady stream, whisking constantly, until fully emulsified and thick enough to hold a trail from the whisk. The full method, the temperature discipline, and how to rescue a split sauce belong at Emulsions — this page assumes you have read it.

Faults specific to hollandaise — splitting into a greasy puddle (butter added too fast, or the yolks overheated and scrambled before the fat was ever added — see the rescue method on the emulsions page); too thin to hold its shape on a plate (not enough butter worked in, or the yolk base was never properly ribboned before the butter began); a raw, eggy taste (insufficient initial cooking of the yolk-and-acid base before the butter is added).

Sauces with no mother

Not every important French sauce descends from Carême or Escoffier's five. A large and, in a modern kitchen, increasingly central group of sauces were never absorbed into the classification at all, because they are built by entirely different logic: reduction and emulsion with butter rather than a roux; raw emulsion rather than cooking; a simple dressing rather than a simmered base; a reduction of sugar and vinegar rather than stock. These sauces are not a lesser or incomplete set — several of them, beurre blanc and vinaigrette especially, are cooked far more often today than most of the derivatives above.

• Beurre blanc. A reduction of shallot, white wine and vinegar, emulsified with a great deal of cold butter whisked in piece by piece off the heat. Warm, pale, and unctuous; the standard partner for poached or steamed fish. See Emulsions for the method.
• Beurre noisette. Butter cooked in the pan itself until the milk solids brown and it smells of hazelnuts, then used immediately, often with a squeeze of lemon and capers. The simplest sauce in this entire page and one of the best.
• Beurre maître d'hôtel. Softened butter beaten with chopped parsley and lemon juice, rolled into a log, chilled, and sliced into discs to melt over a hot grilled steak or fish at the table. A compound butter, not a cooked sauce at all.
• Vinaigrette. Oil and acid (vinegar or citrus) emulsified together, classically at a ratio of three parts oil to one part acid, with mustard as the emulsifier that holds it together rather than merely flavouring it. The most-made sauce in any kitchen, French or otherwise.
• Mayonnaise and its children. Egg yolk, oil, and acid, emulsified cold rather than warm. Aïoli adds garlic pounded to a paste; rémoulade adds mustard, capers, and gherkins; sauce tartare adds chopped egg, capers and cornichons; sauce verte adds a purée of green herbs. All are mayonnaise with one addition, in exactly the derivative logic of the mothers above, but the family was never formally adopted into Carême's system.
• Jus and pan sauces. The liquid released by roasting or searing meat, deglazed from the pan with wine or stock and reduced, sometimes finished with a knob of butter (monter au beurre). Thickened by nothing but reduction and, at most, that last butter. The everyday sauce of a home kitchen and the fastest of everything on this page.
• Coulis. A sauce made by cooking and passing a single vegetable or fruit through a sieve — tomato, red pepper, raspberry, mango. No roux, no emulsion, simply concentrated purée, sweet or savoury.
• Salsa verde-style herb sauces. Chopped or pounded fresh herbs, garlic, capers and anchovy bound loosely with olive oil and a little acid — no cooking at all. The Italian salsa verde, French persillade, and Argentine chimichurri all share this logic and none of them belongs to any mother.
• Gastrique. Sugar caramelised and deglazed with vinegar, the oldest sweet-sour base in the repertoire, used to cut through rich meat (duck, pork) or to underpin a fruit sauce.

Why the classification stopped mattering for this whole group: Carême and Escoffier were codifying a specific, roux-and-stock-based grand cuisine, and the system describes that cuisine extremely well. But French cooking — like all cooking — kept moving, towards lighter, faster, emulsion- and reduction-based sauces that owe far more to a hot pan and a whisk than to a simmering pot of stock. The tree above is still the right way to understand where a given classical sauce sits; it was simply never meant to, and never did, contain everything worth knowing how to make.

Which sauce with what

A working decision table, organised by protein and cooking method rather than by mother — which is how a cook actually reaches for a sauce at the stove.

Quantities and making ahead

As a working figure across nearly every sauce on this page: 60–90 ml of finished sauce per person for a roux- or stock-based sauce served as an accompaniment (velouté, espagnole family, tomate), and rather less — 25–40 ml — for a rich emulsified butter sauce like hollandaise or beurre blanc, since a little of those goes a long way and too much reads as heavy rather than generous. A vinaigrette for a dressed salad wants roughly 15–20 ml per person; more than that and the leaves drown rather than glisten.

Roux-based sauces (béchamel, velouté, espagnole and their derivatives) keep well and, for espagnole in particular, genuinely improve over a day or two in the refrigerator as the flavours settle — make them a day ahead without hesitation, reheating gently with a splash of stock or milk to loosen. Tomato-based sauces likewise keep and often improve for a day. Emulsified sauces are the exception: hollandaise and its children hold for perhaps an hour at a bare, warm — never hot — temperature (a wide-necked flask, or a bowl set over barely warm water) and do not reheat once cold without breaking; make these last, close to service, exactly as set out under the timing of a dinner in Plating & Service. Beurre blanc behaves the same way. Vinaigrette and mayonnaise, by contrast, hold for days under refrigeration, since neither depends on heat to stay emulsified.

When it goes wrong