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 ↓
Breast of Mutton with French Beans
Ingredients
Directions
Prepare the breast of mutton with stuffing as for peas.
Place it in a stewpan with sliced onion, salt, and pepper.
Wash and cut the French beans, then place them on top of the mutton.
Add ½ pint of water.
When cooked, mix flour, moist sugar, vinegar, and browning in a basin.
Remove all fat from the mutton before adding the sauce.
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).
-
Sugar + saucetop 13% of all pairsSmell alikestrongCooked together5,147 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Onion + vinegartop 14% of all pairsSmell alikemoderateCooked together18,226 recipes
Shared aroma: acetic acid (sour, vinegar).
-
Pepper + vinegartop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Flour + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
Swap the onion
How well each one fits the dish's main ingredients (mutton, pepper, flour, sugar, vinegar, sauce):
- Capsicumfits better
- Shallotfits better
- Mustardfits better
- Onionthe original
Fit is the average pairing score against mutton, pepper, flour, sugar, vinegar, sauce. Candidates are from the same food group and used in at least 100 recipes.
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.
Deviled Oysters25 recipes