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 ↓
Boiled Salad Dressing
Ingredients
Directions
Prepare
Sift the dry ingredients: salt, mustard, sugar, corn starch, and cayenne pepper.
Make the dressing
Add the beaten egg yolks, melted butter, milk, and diluted vinegar slowly while beating constantly.
Cook in a double boiler until the mixture thickens.
Cool and thin with cream if necessary.
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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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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Milk + corntop 10% of all pairsSmell alikemoderateCooked together6,955 recipes
Shared aroma: hexanal (green, grassy).
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Pepper + corntop 11% of all pairsSmell alikemoderateCooked together5,324 recipes
Shared aroma: 2-nonenal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Egg yolks
- Thicken and emulsify the dressing, giving it a rich, smooth body as they set with heat.
- Corn starch
- Thickens the mixture as it heats, giving the dressing body without relying on eggs alone.
- Butter
- Adds fat for richness and a smooth mouthfeel to the dressing.
- Vinegar
- Adds acidity that gives the dressing its tang and balances the richness.
- Mustard
- Adds sharp flavour and helps stabilise the emulsion.
The step that matters
Adding the liquids while beating. Pouring the egg yolks, butter, milk and vinegar in slowly while beating constantly keeps the mixture smooth. Adding them too fast can make the eggs curdle or separate.
Swap the mustard
How well each one fits the dish's main ingredients (egg, butter, sugar, milk, pepper, vinegar, corn):
- Capsicumfits better
- Potatofits better
- Asparagusfits about as well
- Mustardthe original
Fit is the average pairing score against egg, butter, sugar, milk, pepper, vinegar, corn. 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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