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 That Will Keep
Ingredients
Directions
Make the dressing
Mix mustard and sugar with a little hot water.
Beat the egg yolks with red pepper and coarse sea salt.
Add the mustard mixture, olive oil, melted butter, vinegar, and lemon juice.
Stir constantly in an earthen dish to prevent separation.
Store and serve
Store in a glass jar with a screw top.
When ready to use, add 1 quart of whipped cream.
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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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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Mustard + olivetop 8% of all pairsSmell alikestrongCooked together5,950 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Mustard + peppertop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Egg yolks
- Emulsify the oil and butter, giving the dressing its thick, creamy body.
- Melted butter
- Adds richness and fat, making the dressing smooth and mellow.
- Olive oil
- Adds fat that forms the emulsion and carries flavor.
- Vinegar
- Adds acidity that sharpens the flavor and balances the richness.
- Mustard
- Helps stabilize the emulsion and adds sharp flavor.
- Whipped cream
- Lightens the dressing and adds moisture and softness when added at serving.
The step that matters
Stir constantly in an earthen dish to prevent separation.. The dressing is an emulsion of fat and water-based liquids held together by egg yolk. Without constant stirring while the fats are added, the mixture can break and separate into oily and watery layers.
Swap the mustard
How well each one fits the dish's main ingredients (sugar, egg, pepper, olive, butter, vinegar, lemon):
- Capsicumfits better
- Mustardthe original
- Asparagusfits about as well
- Shallotfits about as well
Fit is the average pairing score against sugar, egg, pepper, olive, butter, vinegar, 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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