Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Salad Dressing
Ingredients
Directions
Prepare the base
Combine the milk and butter in a double boiler.
Beat the egg yolks with mustard, salt, sugar, and cayenne pepper in a separate bowl.
Add the yolk mixture to the melted butter and milk.
Heat the vinegar separately.
Gradually add the heated vinegar to the mixture.
Finish and cook
Fold in the beaten egg whites.
Cook until thickened, resembling custard.
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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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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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).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Yolks thicken the dressing as they cook, and whites add lightness when folded in.
- Butter
- Adds richness and a smooth, creamy mouthfeel to the dressing.
- Milk
- Forms the creamy liquid base that the yolks thicken into a custard.
- Vinegar
- Adds acidity that gives the dressing its tangy flavour.
- Sugar
- Balances the sharpness of the vinegar with sweetness.
The step that matters
Cook until thickened, resembling custard. Egg yolks thicken when heated gently, but if the heat is too high they can scramble. Cooking slowly while stirring keeps the dressing smooth.
Swap the mustard
How well each one fits the dish's main ingredients (vinegar, sugar, pepper, milk, butter, egg):
- Capsicumfits better
- Potatofits about as well
- Mustardthe original
- Asparagusfits about as well
Fit is the average pairing score against vinegar, sugar, pepper, milk, butter, egg. 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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