Why it works: Butter and cream are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 41,516 recipes. Both carry delta-dodecalactone, which smells sweet, creamy. The science ↓
String Beans
Ingredients
Directions
Prepare
Trim the ends and remove the strings from the pods of the beans.
Cut each bean lengthwise into two or three strips.
Soak the beans in cold water for 30 minutes.
Cook and serve
Boil the beans in boiling water until perfectly tender, about 3 hours.
Drain the beans well and return them to the kettle.
Add the cream, butter, salt, and pepper to the beans and stir to combine.
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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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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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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Butter + beanstop 19% of all pairsSmell alikemoderateCooked together2,799 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Butter + peppertop 21% of all pairsSmell alikemoderateCooked together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Cream + peppertop 23% of all pairsSmell alikelowCooked together21,449 recipes
Shared aroma: acetic acid (sour, vinegar).
Cream and pepper barely smell alike, yet cooks put them together in 21,449 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
- Yellow butter beans
- Provide the main body of the dish and absorb the cream and butter.
- Cream
- Adds richness and a smooth, silky texture to the beans.
- Butter
- Adds fat for flavour and a glossy finish.
The step that matters
Boil the beans until perfectly tender. Dried or mature beans need long, gentle simmering so the starch softens fully and the skins and interior become tender. Stopping early leaves them tough and chalky, and the cream cannot soften them once served.
Swap the beans
How well each one fits the dish's main ingredients (butter, cream, pepper):
- Almondfits better
- Walnutfits about as well
- Pistachiofits about as well
- Beansthe original
Fit is the average pairing score against butter, cream, 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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