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 ↓
Bean Soup
Ingredients
Directions
Prepare the beans
Soak the beans overnight in 1 quart of lukewarm water.
In the morning, boil the beans in enough water to cover them, then discard the water.
Simmer and serve
Add 1 gallon of cold water and the salt pork to the beans.
Boil slowly for about 3 hours.
Add pepper and coarse sea salt to taste.
Strain the soup and serve with a slice of lemon for each person.
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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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
- Form the body of the soup, softening and thickening as they cook.
- Salt pork
- Adds fat and savory flavor that carries through the long simmer.
The step that matters
Boil the beans before the long simmer. Soaking and a brief boil, then discarding that water, removes compounds in raw beans that can upset digestion and leaves a cleaner-tasting broth. Skipping the discard leaves the soup harsher and less clear.
Swap the lemon
How well each one fits the dish's main ingredients (beans, pork, pepper):
- Avocadofits better
- Limefits better
- Mangofits about as well
- Lemonthe original
Fit is the average pairing score against beans, pork, 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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