Why it works: Lettuce and mustard match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 1,356 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Lettuce Salad
Ingredients
Directions
Make the dressing
Crush the yolks of the hard-boiled eggs into a powder.
Mix in the sugar, pepper, salt, mustard, and salad oil; let it stand for five minutes.
Beat in the vinegar.
Assemble the salad
Cut the lettuce with a knife and fork (do not use a chopper).
Place the lettuce in a bowl, add the dressing, and toss with a silver fork.
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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Lettuce + mustardtop 1% of all pairsSmell alikestrongCooked together1,356 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Mustard + vinegartop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Mustard + peppertop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Lettuce + peppertop 9% of all pairsSmell alikemoderateCooked together4,037 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Pepper + vinegartop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Hard-boiled egg yolks
- Crushed yolks form a smooth, creamy base that thickens the dressing.
- Salad oil
- Adds fat and silkiness, carrying flavour and coating the lettuce.
- Vinegar
- Provides acidity that brightens the dressing and balances the fat and sugar.
- White sugar
- Softens the sharpness of the vinegar and mustard for a rounder flavour.
- Prepared mustard
- Adds sharp aroma and helps emulsify the oil into the dressing.
The step that matters
Let the dressing stand before adding the vinegar. Letting the crushed yolks, sugar, seasonings and oil rest lets the salt and sugar dissolve and the flavours meld before the acid is added, giving a smoother, more even dressing.
Swap the lettuce
How well each one fits the dish's main ingredients (egg, sugar, mustard, pepper, vinegar):
- Horseradishfits better
- Capsicumfits better
- Shallotfits about as well
- Lettucethe original
Fit is the average pairing score against egg, sugar, mustard, pepper, vinegar. 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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