Why it works: Mustard and vinegar 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 Salad Dressing
Ingredients
Directions
Make the dressing
Beat the yolks and whites of the eggs separately, then combine them.
Add the remaining ingredients while stirring constantly.
Place the bowl in a saucepan of boiling water and cook until thickened, stirring continuously.
Chill
Chill the dressing in the refrigerator until completely cold.
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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Mustard + vinegartop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Mustard + peppertop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Pepper + vinegartop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Sugar + vinegartop 15% of all pairsSmell alikemoderateCooked together20,806 recipes
Shared aroma: beta-damascenone (apple, rose).
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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
- Eggs
- Thicken the dressing as they cook and set, giving it body and a creamy texture.
- Vinegar
- Adds acidity that sharpens the flavour and balances the richness of the eggs.
- Dry mustard
- Adds sharp, pungent flavour that complements the vinegar and eggs.
- Oil or melted butter
- Adds fat for smoothness and a rounder mouthfeel in the dressing.
The step that matters
Cooking the custard until thickened. Egg proteins set gently when heated. Stirring constantly over simmering water spreads the heat evenly and prevents the eggs from curdling into lumps, while still thickening the dressing.
Swap the mustard
How well each one fits the dish's main ingredients (egg, butter, sugar, pepper, vinegar):
- Capsicumfits better
- Mustardthe original
- Cucumberfits about as well
- Shallotfits less well
Fit is the average pairing score against egg, butter, sugar, pepper, vinegar. 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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