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 ↓
Salad Dressing
Ingredients
Directions
Combine egg yolks, melted butter, olive oil, coarse sea salt, red pepper, mustard, vinegar, and lemon juice in a bowl.
Cook the mixture in a double boiler, stirring constantly.
Fold in the whipped cream gently before serving.
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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Mustard + vinegartop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Olive + lemontop 7% of all pairsSmell alikemoderateCooked together11,922 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Olive + mustardtop 8% of all pairsSmell alikestrongCooked together5,950 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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, binding the fats and liquids into a smooth body.
- Melted butter
- Adds richness and a smooth, rounded mouthfeel.
- Olive oil
- Adds fat and body, carrying flavour through the dressing.
- Vinegar
- Adds acidity that sharpens flavour and balances the richness.
- Cream
- Adds lightness and softness when folded in at the end.
The step that matters
Cook the mixture in a double boiler, stirring constantly. Egg yolks thicken gently at moderate heat, but direct or excessive heat can scramble them into lumps. The double boiler and constant stirring keep the heat even so the sauce thickens smoothly.
Swap the mustard
How well each one fits the dish's main ingredients (egg, butter, olive, pepper, vinegar, lemon, cream):
- Capsicumfits better
- Spinachfits better
- Asparagusfits about as well
- Mustardthe original
Fit is the average pairing score against egg, butter, olive, pepper, vinegar, lemon, cream. 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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