Five Sauces, Five Ratios, and You Stop Looking Them Up

Nearly every sauce a home cook needs is one of five ratios, and every published recipe for one of them is that ratio with a particular set of ingredients attached. Learn the ratio and the ingredient list becomes a suggestion, which is the point at which you stop needing the recipe and can finish whatever is actually in the kitchen.

The mechanisms underneath — why an emulsion holds, why a pan sauce breaks — are worth understanding separately. What follows is the arithmetic.

One: the vinaigrette, three to one

Three parts oil to one part acid, plus salt and something that emulsifies.

That is the only number to remember, and the two useful adjustments are: more acid if it is going on something rich or starchy, less if the acid is a sharp vinegar rather than citrus. Taste it on a leaf, not off a spoon, because a spoonful of dressing always tastes too strong.

The emulsifier is what keeps it from separating on the plate, and a teaspoon of Dijon is the standard because mustard is one. Honey, egg yolk, miso, a spoonful of yogurt, mashed garlic and even the pulp in a citrus juice all do some of the job. An emulsion that clings is an emulsion with enough of it.

Variations that are the same ratio: a Caesar with anchovy and egg yolk, a miso-sesame dressing, a sherry vinaigrette with shallot, a lime-fish-sauce dressing where the fish sauce is part of the acid side and all of the salt.

If only one of the five ever gets learned, learn this one. Three to one is what turns a bag of leaves into a course, and it is the only sauce here that can be made in the bottom of the bowl you are about to eat out of. Nothing else on this page costs so little to get right.

Two: the creamy sauce, one to one to a squeeze

One part thick dairy to one part something with flavor, loosened with acid and water to the consistency you want.

Yogurt and tahini. Sour cream and herbs. Mayonnaise and garlic. Labneh and harissa. Crème fraîche and mustard. In every case the dairy is the body, the second ingredient is the point, and the lemon and water are the volume control.

The thing people get wrong is thickness. A sauce that mounds on a spoon does not coat anything; it sits on top in a blob. Thin it until it falls off the spoon in a ribbon, then salt it again, because thinning dilutes the salt.

Three: the herb sauce, loose and uncounted

A large bunch of soft herbs, chopped, covered with oil, with acid, salt, and something sharp — garlic, shallot, chile, capers.

This one resists a ratio and the honest instruction is the texture: it should be spoonable and loose, not a paste and not a slick of oil with green flecks in it. Add oil until the herbs are suspended rather than clumped.

Salsa verde, chimichurri, zhoug, pesto without the cheese, gremolata with oil. Every cuisine has one, they are all the same idea, and it is the single most useful thing to have in a jar, because it turns a plain piece of anything into a dish.

Use the stems. Parsley and cilantro stems carry more flavor than the leaves and disappear when chopped fine.

Make more of it than looks sensible. A jar in the refrigerator is the difference between a plain piece of fish being dinner and a plain piece of fish being a plain piece of fish, and the excess never lasts the week anyway.

Four: the pan sauce, deglaze and reduce and finish

Food out of the pan, fat poured off, aromatics briefly, liquid in, scrape, reduce by half or more, cold butter off the heat.

The proportions are loose because the variable is how much fond was on the bottom of the pan, which is the actual ingredient. A quarter to a half cup of liquid per portion, reduced hard, and a tablespoon of butter swirled in at the end.

Three rules and the sauce works every time. Season at the end, because reduction concentrates salt along with everything else. Add the butter off the heat, because the finished sauce is an emulsion and it breaks if it boils. And taste for acid before serving — a pan sauce built on browned meat is almost always a squeeze of lemon short.

This is the sauce that makes a weeknight piece of chicken look like it came from somewhere, and it costs four minutes and one pan you were already using.

Five: the thickened sauce, one to one to one hundred

Equal weights of fat and flour, cooked together, then roughly eight to ten parts liquid. A tablespoon of each per cup of liquid gives a pourable sauce; two of each gives something that coats heavily.

Cook the flour in the fat for at least a minute before the liquid, or the sauce tastes of raw flour. Add the liquid gradually at first and whisk, and it will not lump. And know that a darker roux thickens less, because the browning that gives it flavor also breaks down some of the starch doing the work.

The alternative for a quick job is a cornstarch slurry — a tablespoon in a little cold water, stirred into simmering liquid — which is faster, clearer, and goes thin if it is held hot for a long time or frozen. Roux for something that has to sit; slurry for something being served now.

Which is a decision about the evening rather than about the sauce. The roux costs five minutes at the front and then behaves for the rest of the night. The slurry costs thirty seconds and starts letting go the moment it is left alone. Anything headed for an oven, a hold, or a table of eight wants the five minutes.

The five decisions, rather than the five recipes

Once the ratios are familiar, choosing between them is a question about the dish rather than about the sauce.

Something plain that needs brightness: vinaigrette or herb sauce.

Something dry or lean that needs richness: creamy sauce.

Something you just seared: pan sauce, obviously, because the ingredients are already in the pan.

Something that needs to be held, baked into, or served to a table: the thickened one, since it is the only one of the five that is stable over time and heat.

Something rich that is already complete: nothing, or acid alone.

The part that is not a ratio

Every one of these is finished the same way and it is the step that gets skipped: taste it, and ask whether it needs salt, acid, or fat.

Flat means salt or acid. Harsh means fat or sweetness. Heavy means acid or bitterness. Thin in texture means more fat or more reduction. Thin in flavor means the base was never built.

A sauce is where a dish gets corrected, which is why a cook who can make five of them without a recipe has more room to be wrong earlier in the evening.

Part of Recipes & Technique.