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 ↓
Haricot Beans
Ingredients
Directions
Prepare the beans
Soak the beans overnight with baking soda in water.
Drain the beans and discard any that float.
Cook and serve
Boil the beans in fresh water until tender, about 2 hours.
Drain the beans again and serve, seasoning with pepper, salt, and butter.
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.
-
Beans + peppertop 11% of all pairsSmell alikemoderateCooked together4,733 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Beans + buttertop 19% of all pairsSmell alikemoderateCooked together2,799 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
Butter + peppertop 21% of all pairsSmell alikemoderateCooked together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Beans
- Form the main body of the dish and become tender and creamy when simmered.
- Baking soda
- Raises the water's alkalinity during soaking, helping the beans soften more evenly.
- Butter
- Adds richness and a smooth mouthfeel to the cooked beans.
The step that matters
Boil the beans in fresh water until tender. Dried beans must be fully cooked, since undercooked beans can contain compounds that cause digestive upset. Simmering gently until they are tender, rather than boiling hard, helps them keep their shape while softening evenly.
Swap the beans
How well each one fits the dish's main ingredients (butter, pepper):
- Walnutfits about as well
- Black-eyed peafits about as well
- Almondfits about as well
- Beansthe original
Fit is the average pairing score against 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.
More haricot beans recipes
You might also like
German Style String Beans7 recipes
Tomato Soup526 recipes
Brown Bread461 recipes
Mutton Broth292 recipesThe free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.