Why it works: Parsley and pepper match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and 34,122 recipes mention both. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Haricots a LA Bonne Femme
Ingredients
Directions
Cook the beans
Place the haricot beans in water with the salt; let them boil.
Reduce heat and simmer gently for about 2 hours until the beans are easily crushed between your thumb and finger.
Drain the beans and return them to the saucepan.
Finish and serve
Add the butter, parsley, salt, and pepper, along with 1 cup of the cooking liquid.
Shake the saucepan over the heat until the butter is melted and serve very hot.
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 aroma chemistry they share, and how many recipes mention both.
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Parsley + peppertop 2% of all pairsAroma overlapstrongMentioned together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Beans + parsleytop 8% of all pairsAroma overlapstrongMentioned together1,376 recipes
Shared aroma: linalool (floral, citrus).
-
Beans + peppertop 11% of all pairsAroma overlapmoderateMentioned together4,733 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Butter + parsleytop 15% of all pairsAroma overlapmoderateMentioned together28,563 recipes
Shared aroma: trans-2-hexenal (green, leafy).
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Beans + buttertop 19% of all pairsAroma overlapmoderateMentioned 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 as they simmer.
- Butter
- Adds richness and a silky coating that carries flavour through the beans.
- Cooking liquid (in the method)
- Adds moisture and body, helping the butter emulsify into a glossy sauce.
The step that matters
Simmer gently until the beans are easily crushed. Vigorous boiling can break the skins and leave beans mushy, while gentle simmering cooks them evenly until the interior is tender.
Flavor stand-ins for the beans
How well each one fits the dish's main ingredients (butter, parsley, pepper):
- Chickpeabetter flavor fit
- Black-eyed peaabout as good a flavor fit
- Walnutabout as good a flavor fit
- 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. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).
“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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