Why it works: Beans and pepper are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 4,733 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
French Beans, to Keep All the Year
Ingredients
Directions
Gather young beans on a fine day.
Layer salt and beans in a stone jar until full, finishing with salt on top.
Cover with a coarse cloth and place a weight on top to keep out air.
Store in a dry cellar.
When ready to use, wash beans and soak in soft water for 24 hours, changing the water often.
Boil beans without adding salt, preferably with the white heart of a small cabbage.
Drain and chop the cabbage, then combine with beans in a saucepan.
Add butter rolled in flour, a pinch of pepper, and some gravy.
Let stew for 10 minutes and serve as a side dish.
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 + 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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Beans + buttertop 19% of all pairsSmell alikemoderateCooked together2,799 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Flour + peppertop 19% of all pairsSmell alikemoderateCooked together50,459 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
Swap the beans
How well each one fits the dish's main ingredients (butter, flour, pepper):
- Almondfits better
- Black-eyed peafits better
- Chestnutfits about as well
- Beansthe original
Fit is the average pairing score against butter, flour, pepper. Candidates are from the same food group and used in at least 100 recipes.
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