Why it works: Celery and pepper match in chemistry and in kitchens. They rank in the top 5% of all ingredient pairs, and cooks put them together in 16,012 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Plain Pea Soup
Ingredients
Directions
Make the soup
Put the peas, onion, celery, pepper, salt, and water into a pot.
Simmer together for 3 hours, stirring occasionally.
When the peas are softened, strain them from the soup.
Finish and serve
Work the peas through a sieve and return them to the soup.
Serve with dried mint powder.
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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Celery + peppertop 5% of all pairsSmell alikestrongCooked together16,012 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Onion + celerytop 7% of all pairsSmell alikemoderateCooked together18,518 recipes
Shared aroma: guaiacol (smoky, sweet).
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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Peas + celerytop 12% of all pairsSmell alikemoderateCooked together1,832 recipes
Shared aroma: linalool (floral, citrus).
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Peas + oniontop 13% of all pairsSmell alikemoderateCooked together5,460 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
- Peas
- Provide the main body and thickening once softened and pushed through a sieve.
- Onion
- Adds savory sweetness and aroma as it softens during simmering.
- Celery
- Contributes aromatic flavor that builds the soup's base over a long simmer.
The step that matters
Simmering the peas for 3 hours. Peas need a long, gentle simmer to soften fully. Stopping early leaves them firm, so they will not pass easily through a sieve or thicken the soup.
Swap the peas
How well each one fits the dish's main ingredients (onion, celery, pepper):
- Black-eyed peafits better
- Beansfits better
- Lentilsfits better
- Peasthe original
Fit is the average pairing score against onion, celery, 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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