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 ↓
Dressing for Cold Slaw—salad Dressing
Ingredients
Directions
Make the dressing
Mix the butter, salt, pepper, sugar, and mustard together.
Add the beaten eggs last.
Boil the vinegar and pour it over the mixture, stirring constantly.
Return the mixture to the saucepan and boil for a few minutes.
Cool and serve
Let it cool before pouring it over the slaw.
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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Mustard + peppertop 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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Vinegar + sugartop 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, giving it a smooth, creamy body.
- Vinegar
- Adds sharp acidity that gives the dressing its tangy flavour.
- Sugar
- Adds sweetness that balances the sharpness of the vinegar and mustard.
- Butter
- Adds fat for richness and a softer mouthfeel.
- Mustard
- Adds a sharp, savoury bite that complements the vinegar.
The step that matters
Boil the mixture after returning it to the saucepan. The beaten eggs thicken as their proteins set with heat. Too little heat leaves the dressing thin, while overheating can curdle the eggs, so keep the mixture gently boiling while stirring.
Swap the mustard
How well each one fits the dish's main ingredients (vinegar, egg, sugar, butter, pepper):
- Capsicumfits better
- Mustardthe original
- Cucumberfits about as well
- Shallotfits less well
Fit is the average pairing score against vinegar, egg, sugar, butter, pepper. 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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