Why it works: Pepper and lemon match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 27,047 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓
Haricot Fricassee
Ingredients
Directions
Prepare
Soak the haricot beans in cold water for 1.5 to 2 hours, or place them in a covered jar with water in the oven for 12 hours.
Make the sauce
Slice the onion thinly and brown it in butter over medium heat.
Sprinkle the wholemeal flour slowly into the pan, cooking for 1–2 minutes without burning.
Gradually pour in the vegetable stock while stirring to prevent lumps.
Boil the mixture for about 5 minutes, then add the haricot beans and let them simmer gently until ready.
Serve
When serving, place sippets around the dish and squeeze lemon juice over the haricots.
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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Pepper + lemontop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Butter + breadtop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
-
Beans + peppertop 11% of all pairsSmell alikemoderateCooked together4,733 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Beans + flourtop 11% of all pairsSmell alikemoderateCooked together2,080 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Beans + lemontop 12% of all pairsSmell alikestrongCooked together1,474 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 and absorb flavour as they simmer in the sauce.
- Butter
- Carries the onion's flavour and browns it, adding richness to the base.
- Wholemeal flour
- Thickens the stock into a smooth sauce when cooked briefly with the butter.
- Vegetable stock
- Forms the liquid of the sauce that the beans simmer in.
The step that matters
Adding the stock. Pouring the stock in gradually while stirring keeps the flour evenly dispersed, so the sauce stays smooth instead of forming lumps.
Swap the beans
How well each one fits the dish's main ingredients (butter, flour, pepper, lemon, bread):
- Almondfits better
- Chickpeafits better
- Chestnutfits about as well
- Beansthe original
Fit is the average pairing score against butter, flour, pepper, lemon, bread. 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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