Why it works: Parsley and pepper match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Haricot Beans Boiled
Ingredients
Directions
Prepare
Soak the beans in cold water for 24 hours.
Cook
Boil the soaked beans in 3 cups of cold water with the dripping for about 1 hour, until soft but not broken.
Finish and serve
Drain the beans and add the butter, parsley, pepper, and salt.
Shake the pan to mix the butter and parsley evenly over the beans, then serve.
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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Parsley + peppertop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Beans + parsleytop 8% of all pairsSmell alikestrongCooked together1,376 recipes
Shared aroma: linalool (floral, citrus).
-
Beans + peppertop 11% of all pairsSmell alikemoderateCooked together4,733 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Butter + parsleytop 15% of all pairsSmell alikemoderateCooked together28,563 recipes
Shared aroma: trans-2-hexenal (green, leafy).
-
Beans + buttertop 19% of all pairsSmell alikemoderateCooked together2,799 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
- Haricot beans
- Form the main body of the dish, becoming soft and tender when simmered.
- Butter
- Adds richness and a smooth, glossy coating to the beans.
- Dripping
- Adds savoury fat to the cooking water, flavouring the beans as they boil.
The step that matters
Boiling until soft but not broken. Beans cooked too hard stay firm and beans cooked too long split and lose their shape. Gentle, steady simmering softens the starches evenly while keeping the skins intact.
Swap the beans
How well each one fits the dish's main ingredients (butter, parsley, pepper):
- Chickpeafits better
- Black-eyed peafits about as well
- Walnutfits about as well
- Beansthe original
Fit is the average pairing score against butter, parsley, 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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