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 ↓
Dried Peas
Ingredients
Directions
Wash and pick over the peas carefully.
Put the peas into boiling water and boil until soft.
Drain the water and add butter, onion, salt, and pepper.
Stew until the onion is cooked, then serve.
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.
-
Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Peas + oniontop 13% of all pairsSmell alikemoderateCooked together5,460 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Butter + oniontop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
-
Peas + peppertop 15% of all pairsSmell alikemoderateCooked together5,331 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
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
- Dried peas
- Form the bulk of the dish and set into a soft, tender texture when boiled.
- Butter
- Adds fat for richness and a smooth, rounded mouthfeel.
- Onion
- Adds savory aroma and sweetness as it softens during stewing.
The step that matters
Boil the peas until soft. Dried peas need full hydration and cooking to soften; undercooked peas stay firm and starchy. Cooking them in boiling water helps them cook evenly.
Swap the peas
How well each one fits the dish's main ingredients (butter, onion, pepper):
- Black-eyed peafits better
- Sesamefits better
- Beansfits better
- Peasthe original
Fit is the average pairing score against butter, onion, 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.
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
Green Peas229 recipes
Green Peas Soup35 recipes
Tomato Soup526 recipes
Brown Bread461 recipes