Why it works: Lemon and pepper 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
Make the emulsion
Beat the egg yolks and add the mustard.
Gradually beat in the olive oil, 1 teaspoon at a time, until it begins to thicken.
Alternately add the lemon juice and olive oil, 1 teaspoon at a time, until all is used.
Cook and finish
Fold in the beaten egg whites, flour, and water.
Cook slowly, stirring until it thickens; do not boil.
When cool, add the salt and cayenne pepper.
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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Lemon + peppertop 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).
-
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).
-
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 into the dressing, giving it a thick, creamy body.
- Olive oil
- Supplies fat that, emulsified with the yolks, gives richness and smooth texture.
- Lemon juice
- Adds acidity that brightens the flavour and balances the richness of the oil.
- Egg whites
- Folded in before cooking, they add structure and help thicken the mixture as it heats.
- Flour
- Thickens the dressing as it cooks, stabilising its body.
The step that matters
Cook slowly without boiling. Egg proteins set as they heat and can curdle or scramble if overheated. Cooking gently while stirring lets the mixture thicken smoothly without turning grainy.
Swap the lemon
How well each one fits the dish's main ingredients (egg, mustard, olive, vinegar, flour, pepper):
- Avocadofits about as well
- Limefits about as well
- Lemonthe original
- Cherryfits about as well
Fit is the average pairing score against egg, mustard, olive, vinegar, flour, pepper. 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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