Why it works: Butter and milk 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 Without Oil
Ingredients
Directions
Make the base
Beat the eggs well.
Stir in the sugar, salt, mustard, and cayenne pepper.
Add the vinegar.
Melt the butter and cream it into the flour.
Cook and finish
Bring the milk to a boil.
Pour the egg mixture and flour mixture into the boiling milk.
Cook until thick, stirring constantly.
If more acidity is needed, add lemon juice after removing from heat.
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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Butter + milktop 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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Mustard + flourtop 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
- Eggs
- Thicken and set as they cook, giving the sauce body and structure.
- Flour
- Thickens the mixture with the butter, giving a stable, creamy body.
- Butter
- Adds richness and a smooth, fatty mouthfeel.
- Milk
- Forms the liquid base that the eggs and flour thicken.
- Vinegar
- Adds acidity that gives the sauce a sharp, tangy flavour.
The step that matters
Cook until thick, stirring constantly. Egg proteins set at moderate heat and can curdle or scramble if overheated or left unstirred. Constant stirring keeps heat even so the sauce thickens smoothly.
Swap the mustard
How well each one fits the dish's main ingredients (egg, sugar, pepper, vinegar, butter, flour, milk):
- Capsicumfits better
- Shallotfits about as well
- Mustardthe original
- Chivefits about as well
Fit is the average pairing score against egg, sugar, pepper, vinegar, butter, flour, milk. 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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