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 ↓
Salad Dressing
Ingredients
Directions
Make the dressing
Beat the yolks of the eggs in a bowl.
Add sugar, salt, mustard, black pepper, cayenne pepper, and cream; mix thoroughly.
In a saucepan, bring vinegar to a boil.
Add butter to the boiling vinegar and boil again.
Pour the hot vinegar mixture over the egg mixture and stir well.
Bottle and store
Bottle the dressing when cool and store in a cool place.
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.
Photo for illustrative purposes only · Contact us to use it
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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Cream + buttertop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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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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Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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Pepper + vinegartop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Egg yolks
- Emulsify and thicken the dressing, giving it body as they set with heat.
- Vinegar
- Adds sharpness and acidity that balances the richness of the eggs and butter.
- Butter
- Adds fat and richness, giving the dressing a smooth, creamy mouthfeel.
- Sugar
- Adds sweetness that rounds out the vinegar's sharpness.
The step that matters
Pour the hot vinegar mixture over the egg mixture and stir well. Egg yolks thicken when heated, but pouring hot liquid in too fast or without stirring can scramble them into lumps. Stirring constantly while adding the hot mixture gently warms the yolks so the dressing stays smooth.
Swap the mustard
How well each one fits the dish's main ingredients (egg, sugar, pepper, cream, vinegar, butter):
- Capsicumfits about as well
- Mustardthe original
- Asparagusfits about as well
- Potatofits about as well
Fit is the average pairing score against egg, sugar, pepper, cream, vinegar, butter. 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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