Why it works: Lemon and pepper 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 ↓
Bean Soup
Ingredients
Directions
Wash and boil the beans with the salt pork until soft.
Remove the beans and press them through a colander.
Return the beans to the cooking water.
Add the quartered hard boiled eggs, lemon slices, and pepper.
Boil again and 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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Lemon + peppertop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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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 + porktop 11% of all pairsSmell alikemoderateCooked together2,000 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Beans + lemontop 12% of all pairsSmell alikestrongCooked together1,474 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Pork + peppertop 16% of all pairsSmell alikemoderateCooked together22,121 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Dried beans
- Break down into a thick purée that gives the soup its body.
- Salt pork
- Adds savory fat and salt flavor to the cooking water as it simmers.
- Hard boiled eggs
- Add richness and a soft, creamy texture to the finished soup.
- Lemon
- Adds acidity that brightens the heavy, starchy bean flavor.
The step that matters
Press the beans through a colander. Pressing cooked beans breaks their starch-rich skins and cells, which thickens the liquid and gives the soup a smooth body. Skipping this leaves a thin, grainy broth.
Swap the beans
How well each one fits the dish's main ingredients (pork, egg, lemon, pepper):
- Sesamefits about as well
- Chickpeafits about as well
- Beansthe original
- Walnutfits about as well
Fit is the average pairing score against pork, egg, lemon, 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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