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 ↓
Mayonnaise Dressing with Butter
Ingredients
Directions
Beat the yolks of 3 eggs until light.
In a saucepan, mix 1 cup of sweet milk with 1 tablespoon of butter, 1 tablespoon of flour, ¼ teaspoon of mustard, 1 heaping tablespoon of sugar, 1 teaspoon of salt, and 1 pinch of cayenne pepper.
Add 1 cup of vinegar and mix well.
Cook the mixture in a double boiler until thick.
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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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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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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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + mustardtop 13% of all pairsSmell alikemoderateCooked together5,066 recipes
Shared aroma: isobutyraldehyde (malty, green).
Butter and flour barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.
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 sauce as they set with gentle heat.
- Flour
- Stabilizes the sauce by thickening it so it holds together.
- Butter
- Adds richness and a smooth, silky mouthfeel to the sauce.
- Sweet milk
- Provides the liquid base that the flour and yolks thicken.
- Vinegar
- Adds acidity that sharpens the flavor and balances the richness.
The step that matters
Cook the mixture in a double boiler until thick. Gentle, indirect heat lets the flour starch and egg yolk proteins thicken slowly. Direct high heat can scramble the yolks, leaving lumps and a grainy texture.
Swap the mustard
How well each one fits the dish's main ingredients (egg, milk, butter, flour, sugar, pepper, vinegar):
- Capsicumfits better
- Shallotfits about as well
- Mustardthe original
- Chivefits about as well
Fit is the average pairing score against egg, milk, butter, flour, 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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