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 ↓
Cream of Bean Soup
Ingredients
Directions
Prepare the beans
Soak the beans overnight.
Cook and mash
Boil the beans in slightly salted water until very soft, leaving about 3 cups of liquid.
Remove from heat, strain through a colander, and mash to a paste.
Finish the soup
Return the mashed beans to the pot, add milk, butter, salt, and pepper.
If the soup is not thick enough, mix flour with a little cold water and add it to the soup.
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 + peppertop 11% of all pairsSmell alikemoderateCooked together4,733 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Beans + flourtop 11% of all pairsSmell alikemoderateCooked together2,080 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
Butter and flour barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Beans
- Form the body of the soup once cooked and mashed into a paste.
- Milk
- Adds creaminess and a softer, rounder flavour to the soup.
- Butter
- Adds fat, richness and a smooth mouthfeel to the soup.
- Flour
- Thickens the soup if it is not thick enough after mashing.
The step that matters
Adding the flour mixture. Flour must be mixed with cold water first so it disperses without lumps. Added dry or to hot liquid, it clumps, and the starch only thickens fully once the soup is heated enough to gelatinise it.
Swap the beans
How well each one fits the dish's main ingredients (milk, egg, butter, pepper, flour):
- Almondfits better
- Walnutfits better
- Milletfits about as well
- Beansthe original
Fit is the average pairing score against milk, egg, butter, pepper, flour. 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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