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Preview This is a new page in the Speakeater sauces collection. The ratio and method are verified against the classic public-domain source cited below. Final kitchen testing and original food photography are still in progress.
Pantry sauce · French · Farmer 1896

Vinaigrette.

Learn one ratio, three to one, and you never buy bottled dressing again.

Type
Dressing
Base
Oil + acid
Ratio
3 : 1
Time
2 min
Yield
1/2 cup
Quick answer

To make a vinaigrette, whisk three parts oil into one part acid with a little mustard, salt, and pepper until it emulsifies. The three-to-one ratio is the most useful in cooking and the base of nearly every salad dressing.

What it is

What is vinaigrette?

A vinaigrette is the simplest emulsion in the kitchen: oil and acid coaxed into holding together, with mustard doing the work of keeping them combined. It dresses salads, yes, but it also marinates, finishes roasted vegetables, and sauces grain bowls and grilled fish.

What makes it worth memorizing is the ratio. Three parts oil to one part acid is the backbone, and once it lives in your hands you can build any dressing on it by changing the oil, the acid, or what you stir in. It is the single highest-leverage thing a home cook can learn about sauces.

The recipe

What goes in vinaigrette?

3
Oil
×
1
Acid
×
+
Mustard

Three parts oil to one part acid is the baseline, but it is a starting point, not a law. A sharper salad of bitter greens can take more acid; a delicate one wants more oil. The mustard is the emulsifier that keeps the dressing from splitting the moment you stop whisking.

Method

How do you make vinaigrette?

  1. Whisk the acid, mustard, and salt together in a bowl until the salt dissolves.
  2. Add the oil in a slow stream, whisking constantly, until the dressing thickens slightly and looks unified.
  3. Taste and adjust, more acid for brightness, more oil to soften, more salt to round it out.
  4. Use right away, or shake everything in a sealed jar for a quick version that re-emulsifies with a shake.
Change one thing, change everything Swap the vinegar for lemon, the olive oil for walnut, or stir in a spoon of honey, and the same ratio becomes a brand new dressing.
Cook's notes

What should you know before making vinaigrette?

History

Where did vinaigrette come from?

The vinaigrette is one of the oldest dressings in Western cooking, and Fannie Farmer's 1896 American cookery records the oil-and-acid ratios that home kitchens still use. Sarah Tyson Rorer and her contemporaries documented the same technique in the late nineteenth century.

Drawn from the public-domain text of Fannie Farmer, The Boston Cooking-School Cook Book (1896).

Derivatives

What can you make from vinaigrette?

Balsamic vinaigrette
Built on balsamic vinegar for a sweeter, deeper dressing.
Honey mustard
A spoon of honey and extra mustard for a creamy, sweet dressing.
Shallot vinaigrette
Minced shallot steeped in the acid before the oil goes in.
FAQ

Common questions.

What is the ratio for vinaigrette?

Three parts oil to one part acid is the classic ratio, plus mustard, salt, and pepper. Adjust to taste: more acid for a sharper dressing, more oil for a softer one.

How do you keep a vinaigrette from separating?

Add mustard. It is a natural emulsifier that holds the oil and acid together. Whisking the oil in slowly, or shaking in a jar, also helps.

What oil and vinegar should I use?

Extra-virgin olive oil and a wine or cider vinegar are reliable. Lemon juice works in place of vinegar. Match stronger oils, like walnut, to heartier salads.

What can I use vinaigrette for besides salad?

It marinates meat and vegetables, finishes roasted vegetables, dresses grain bowls, and sauces grilled fish. It is far more than a salad dressing.

How long does vinaigrette keep?

About a week in the fridge in a sealed jar. The oil may firm up cold, so let it come to room temperature and shake before using.

Kyle Schulgen Founder, Speakeater
Builder of Speakeater, the cooking app that reads your fridge. Writes the recipe reference pages by hand, anchored in public-domain culinary sources.
Last updated: 2026-05-29

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