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 ↓
Salads
Ingredients
Directions
Prepare
Wash and prepare the raw vegetables, such as lettuce, cresses, celery, and onions.
Combine the vegetables in a large bowl.
Dress and serve
Season with pepper, vinegar, coarse sea salt, mustard, and oil to taste.
Toss gently to mix the dressing evenly with the vegetables.
Serve immediately.
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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Celery + mustardtop 2% of all pairsSmell alikemoderateCooked together4,169 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Lettuce + celerytop 4% of all pairsSmell alikestrongCooked together2,033 recipes
Shared aroma: nonanal (fat, citrus).
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Celery + peppertop 5% of all pairsSmell alikestrongCooked together16,012 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Onion + mustardtop 6% of all pairsSmell alikestrongCooked together9,259 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
- Lettuce
- Forms the crisp leafy base that holds the dressing.
- Celery
- Adds crunch and a fresh, slightly juicy texture.
- Vinegar
- Adds acidity that brightens the dressing and balances the oil.
- Oil
- Carries flavor and gives the dressing a smooth, coating body.
- Mustard
- Adds sharp flavor and helps emulsify the oil and vinegar.
The step that matters
Toss gently to mix the dressing evenly. Raw leaves and celery bruise and wilt easily under heavy handling. Gentle tossing coats the vegetables without crushing their cell walls, keeping them crisp.
Swap the onion
How well each one fits the dish's main ingredients (lettuce, celery, pepper, vinegar, mustard):
- Horseradishfits better
- Broccolifits better
- Beetrootfits better
- Onionthe original
Fit is the average pairing score against lettuce, celery, pepper, vinegar, mustard. 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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