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 ↓
Split Pea Soup
Ingredients
Directions
Prepare
Soak the split peas overnight.
Make the soup
In the morning, add 4 quarts of water to the peas and boil until they can be pressed through a sieve.
Return the soup to the kettle.
Add the corned beef, celery, salt, and pepper.
Simmer for additional flavor before serving.
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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Beef + peppertop 10% of all pairsSmell alikemoderateCooked together18,971 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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Beef + celerytop 13% of all pairsSmell alikemoderateCooked together4,370 recipes
Shared aroma: guaiacol (smoky, sweet).
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Peas + beeftop 15% of all pairsSmell alikemoderateCooked together1,044 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
- Split peas
- Break down during long boiling to thicken the soup into a smooth, pressable purée.
- Corned beef
- Adds savory, salty flavor and fat to the broth as it simmers.
- Celery
- Contributes aromatic, vegetal flavor to the soup base.
The step that matters
Boil the peas until they can be pressed through a sieve. Split peas need sustained boiling to soften fully; if they are underdone, the soup stays grainy and will not pass cleanly through a sieve to become smooth.
Swap the peas
How well each one fits the dish's main ingredients (beef, celery, pepper):
- Beansfits better
- Black-eyed peafits better
- Walnutfits better
- Peasthe original
Fit is the average pairing score against beef, 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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