Why it works: Vinegar and mustard are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 14,067 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Cooked Mayonnaise Dressing
Ingredients
Directions
Make the dressing
Combine boiling vinegar and beaten egg yolk in a bowl over boiling water.
Cook until stiff.
Remove from heat and stir in butter until cool and stiff.
Season and thin
Once cooled, season with salt, pepper, and mustard.
Thin to desired consistency with sweet cream.
Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.
Explore the science
The flavor team
The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.
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Vinegar + mustardtop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
-
Pepper + mustardtop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Vinegar + peppertop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Egg yolk
- Cooks and thickens with the vinegar to form the stiff, emulsified base of the dressing.
- Butter
- Adds fat and richness, helping the cooked base set firm and smooth as it cools.
- Boiling vinegar
- Acidity that sharpens the flavor and helps the egg yolk cook into a stable base.
- Sweet cream
- Adds moisture and softens the set dressing to the desired consistency.
The step that matters
Cook until stiff over boiling water. Egg yolk proteins thicken with gentle heat and can scramble if overheated. Cooking over simmering water, and stopping once the mixture is stiff, keeps the dressing smooth rather than curdled.
Swap the mustard
How well each one fits the dish's main ingredients (vinegar, egg, butter, pepper, cream):
- Capsicumfits about as well
- Potatofits about as well
- Mustardthe original
- Spinachfits about as well
Fit is the average pairing score against vinegar, egg, butter, pepper, cream. Candidates are from the same food group and used in at least 100 recipes.
“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.
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