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 dressing
Beat the yolks of 8 eggs until thick and lemon colored.
Slowly add 3 tablespoons of olive oil while beating continually.
Gradually mix in ½ cup melted butter, ⅓ cup vinegar, and the juice of 1 lemon.
Cook in a double boiler until it coats the back of a spoon.
Remove from heat and sift in 4 teaspoons salt, 1½ tablespoons mustard, ½ teaspoon white pepper, ⅛ teaspoon red pepper, and 3 tablespoons powdered sugar.
Finish and serve
Thin the dressing with whipped cream 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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Lemon + peppertop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
Vinegar + mustardtop 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).
-
Olive + mustardtop 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 and butter and thicken the dressing as it cooks.
- Olive oil
- Adds fat and richness, held in suspension by the egg yolks.
- Melted butter
- Adds richness and a smooth, creamy mouthfeel to the dressing.
- Vinegar
- Adds sharp acidity that balances the richness of the yolks and fats.
- Mustard
- Helps stabilise the emulsion and adds sharp flavour.
- Whipped cream
- Lightens the thick dressing and adds softness to its texture.
The step that matters
Cook in a double boiler until it coats the back of a spoon. Egg yolks thicken with gentle heat, but overheating scrambles them into lumps. A double boiler keeps the heat low and even, so the dressing thickens smoothly.
Swap the white pepper
How well each one fits the dish's main ingredients (egg, olive, butter, vinegar, lemon, mustard, pepper):
- Tarragonfits better
- Parsleyfits better
- Capersfits better
- White pepperthe original
Fit is the average pairing score against egg, olive, butter, vinegar, lemon, mustard, 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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