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 ↓
Mayonnaise Dressing
Ingredients
Directions
In a bowl, beat the egg yolks, mustard, sugar, cayenne, and salt until light and thick.
Place the bowl in a pan of ice water while beating.
Gradually add the olive oil a little at a time.
When the mixture thickens and the beater becomes hard, add a little vinegar.
Continue adding oil and vinegar until fully incorporated and the dressing is very thick.
Stir in the lemon juice and whipped cream, then refrigerate until needed.
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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Lemon + olivetop 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 vinegar, giving the dressing its thick, creamy structure.
- Olive oil
- Provides the fat that forms the body and richness of the dressing.
- Vinegar
- Adds acidity and sharpness, balancing the richness of the oil.
- Mustard
- Helps stabilise the emulsion so the oil stays suspended in the dressing.
- Sugar
- Adds a touch of sweetness that balances the acidity and salt.
- Whipped cream
- Adds lightness and softness to the finished dressing.
The step that matters
Adding the oil gradually. Oil must be added slowly so the yolks can emulsify it; pouring too fast breaks the mixture into a greasy, separated liquid that cannot be rescued easily.
Swap the lemon
How well each one fits the dish's main ingredients (mustard, sugar, pepper, egg, vinegar, olive, cream):
- Lemonthe original
- Avocadofits about as well
- Cherryfits about as well
- Limefits less well
Fit is the average pairing score against mustard, sugar, pepper, egg, vinegar, olive, 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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