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 ↓
Bottled Salad Dressing
Ingredients
Directions
Make the base
Beat the yolks of 8 eggs.
Slowly add 1 cup of sugar while beating thoroughly.
Mix in 1 tablespoon each of salt, white pepper, and a pinch of cayenne.
Add ½ cup of cream or milk.
Dissolve 1 tablespoon of mustard in a little boiling water and add it.
Mix 1 tablespoon of flour with part of the cream and add it to the mixture.
Cook and bottle
Bring 1½ pints of vinegar to a boil and add 1 cup of butter.
Once boiling, pour in the egg mixture and stir well for 2-3 minutes.
When partially cool, beat with an egg beater.
When cold, bottle and refrigerate.
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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Pepper + mustardtop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
-
Mustard + flourtop 13% of all pairsSmell alikemoderateCooked together5,066 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
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 as they cook, giving it body.
- Butter
- Adds richness and fat, giving a smoother, creamier mouthfeel.
- Vinegar
- Provides acidity that sharpens flavour and helps preserve the dressing.
- Sugar
- Adds sweetness that balances the sharpness of the vinegar.
- Flour
- Thickens the dressing and helps stabilise it against separating.
- Mustard
- Adds sharp flavour and helps emulsify the fat into the mixture.
The step that matters
Pour in the egg mixture and stir well. Egg yolks thicken and can scramble if they overheat, so the mixture must be stirred constantly while heating to keep it smooth.
Swap the white pepper
How well each one fits the dish's main ingredients (egg, sugar, pepper, cream, mustard, flour, vinegar):
- Tarragonfits better
- Capersfits better
- Nutmegfits better
- White pepperthe original
Fit is the average pairing score against egg, sugar, pepper, cream, mustard, flour, 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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