Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Bean Soup
Ingredients
Directions
Prepare
Boil the beans in water until quite soft.
In a separate pan, fry the onions in butter until golden.
Finish the soup
Add the fried onions, milk, a lump of butter, salt, and pepper to the beans.
Stir well and heat through 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.
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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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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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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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + buttertop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Small white beans
- Form the body of the soup as they soften during boiling.
- Milk
- Adds creaminess and a smooth, rich texture to the soup.
- Onions
- Add sweetness and aroma when fried until golden.
- Butter
- Adds richness and flavor from frying the onions and finishing the soup.
The step that matters
Boil the beans until quite soft. Beans that are not fully softened stay firm and grainy in the finished soup. Thorough cooking breaks down their starches so they blend smoothly and eat tender.
Swap the beans
How well each one fits the dish's main ingredients (milk, onion, butter, pepper):
- Beansthe original
- Sesamefits about as well
- Peanutfits about as well
- Soybeanfits about as well
Fit is the average pairing score against milk, onion, butter, 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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