Why it works: Onion and pepper are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 68,474 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Pease or Gravy Soup
Ingredients
Directions
The book gives no cooking times; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.
Sauté the base
In a pot, melt the butter over medium heat.
Add the chopped onion and sauté until translucent.
Simmer and blend
Add the peas and water, then bring to a boil.
Reduce heat and simmer for 20 minutes until peas are tender.
Blend the soup until smooth, then season with salt and pepper.
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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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Peas + oniontop 13% of all pairsSmell alikemoderateCooked together5,460 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + buttertop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
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Peas + peppertop 15% of all pairsSmell alikemoderateCooked together5,331 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Peas + buttertop 16% of all pairsSmell alikemoderateCooked together4,887 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Peas
- Their starch thickens the soup and gives it body once blended.
- Onion
- Softens and sweetens as it sautés, building the soup's base flavor.
- Butter
- Adds fat that carries flavor and gives a smooth, rich mouthfeel.
The step that matters
Simmer until the peas are fully tender. Undercooked peas stay starchy and grainy, so the blended soup will not turn smooth and silky. Cook until they mash easily before blending.
Swap the peas
How well each one fits the dish's main ingredients (onion, butter, pepper):
- Black-eyed peafits better
- Sesamefits better
- Beansfits better
- Peasthe original
Fit is the average pairing score against onion, butter, 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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