Why it works: Beans and onion match in chemistry and in kitchens. They rank in the top 7% of all ingredient pairs, and cooks put them together in 5,242 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
String Bean Salad
Ingredients
Directions
Cook the beans
Wash the string beans thoroughly.
Boil the beans until tender.
Transfer the beans to cold water for a few minutes or run cold water over them in a colander.
Drain the beans well.
Dress the salad
Mix the beans with salt, pepper, chopped onions, and vinegar.
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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Beans + oniontop 7% of all pairsSmell alikestrongCooked together5,242 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Beans + peppertop 11% of all pairsSmell alikemoderateCooked together4,733 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Pepper + oniontop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + vinegartop 14% of all pairsSmell alikemoderateCooked together18,226 recipes
Shared aroma: acetic acid (sour, vinegar).
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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
- String beans
- Form the main body of the salad and give a tender-crisp texture after boiling.
- Onion
- Adds a sharp, aromatic bite that cuts through the mild beans.
- Vinegar
- Adds acidity that brightens the beans and balances the flavor.
The step that matters
Boil the beans until tender, then cool them quickly. Boiling past tender leaves the beans soft and mushy. Moving them straight into cold water stops the cooking, keeping them firm and bright green.
Swap the beans
How well each one fits the dish's main ingredients (pepper, onion, vinegar):
- Sesamefits better
- Black-eyed peafits better
- Soybeanfits about as well
- Beansthe original
Fit is the average pairing score against pepper, onion, 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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