Why it works: Pepper and lemon match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 27,047 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓
Boiled Salad Dressing
Ingredients
Directions
Prepare
Mix egg yolks and butter thoroughly.
Scald mustard with a little hot water.
Cook and cool
Combine all ingredients in a double boiler, stirring until thick.
Beat the mixture until cold.
Thin and use
Before using, thin with cream and lemon juice.
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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Pepper + lemontop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Vinegar + mustardtop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Pepper + mustardtop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Mustard + lemontop 11% of all pairsSmell alikestrongCooked together3,816 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Egg yolks
- Thicken as they cook and help bind the dressing into a smooth emulsion.
- Butter
- Adds richness and a silky texture to the dressing.
- Vinegar
- Provides sharp acidity that balances the richness of the yolks and butter.
- Mustard
- Helps emulsify the fat and adds a sharp, savoury flavour.
- Cream
- Thins the thickened dressing and adds softness and moisture.
- Lemon juice
- Adds bright acidity and thins the dressing just before serving.
The step that matters
Stirring in the double boiler until thick. Egg yolks thicken gently over steady, moderate heat. If the heat is too high, the yolks scramble and the dressing turns grainy instead of smooth.
Swap the mustard
How well each one fits the dish's main ingredients (egg, vinegar, butter, pepper, cream, lemon):
- Capsicumfits about as well
- Spinachfits about as well
- Asparagusfits about as well
- Mustardthe original
Fit is the average pairing score against egg, vinegar, butter, pepper, cream, lemon. 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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