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 ↓
Baked Bean Soup
Ingredients
Directions
Make the soup
Combine cold beans, onion, and whole cloves in a stew-pan.
Cover with cold water and boil until soft.
Press the mixture through a strainer and return to the stove.
Season with salt and pepper to taste.
Serve
Add sliced hard-boiled eggs and thinly sliced lemon when ready to serve.
Omit lemon and eggs for a thinner soup.
Use hot milk instead.
Serve with toast cut into small squares.
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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Clove + peppertop 5% of all pairsSmell alikestrongCooked together17,451 recipes
Shared aroma: ethyl octanoate (fruity, wine).
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Beans + oniontop 7% of all pairsSmell alikestrongCooked together5,242 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Beans + clovetop 9% of all pairsSmell alikestrongCooked together908 recipes
Shared aroma: 2-heptanol (bitter, floral).
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Clove + lemontop 10% of all pairsSmell alikestrongCooked together8,150 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Cold beans
- Form the main body of the soup once boiled and pressed through a strainer.
- Hard-boiled eggs
- Add substance and a soft, rich texture as a garnish-style addition.
- Lemon
- Adds sharp acidity that brightens the mild, starchy bean flavor.
- Hot milk
- Adds richness and a smoother, thinner texture in place of the lemon and eggs.
The step that matters
Press the mixture through a strainer. Pressing the cooked beans and onion through a strainer breaks them down into a smooth, even body; leftover lumps or skins will make the soup grainy.
Swap the onion
How well each one fits the dish's main ingredients (beans, clove, pepper, egg, lemon, milk):
- Capsicumfits better
- Asparagusfits better
- Spinachfits better
- Onionthe original
Fit is the average pairing score against beans, clove, pepper, egg, lemon, milk. 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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