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 ↓
Hash
Ingredients
Directions
Make the sauce
Fry the onion cut into rings and the flour in the dripping until browned.
Gradually add the stock and bring to a boil.
Add salt, skim thoroughly, then add herbs, ketchup, and pepper.
Simmer the sauce for 40 minutes, then strain into a clean saucepan.
Prepare and heat the meat
Cut the meat into thin slices, removing all fat, gristle, and skin.
Add the meat to the sauce and reheat thoroughly for about 30 minutes.
Serve
Place the meat in the center of a hot dish, pour the sauce over, and garnish with fried bread.
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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Mutton + breadtop 12% of all pairsSmell alikemoderateCooked together1,488 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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Flour + ketchuptop 13% of all pairsSmell alikemoderateCooked together2,435 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Onion + breadtop 15% of all pairsSmell alikemoderateCooked together8,676 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Mutton + peppertop 16% of all pairsSmell alikelowCooked together5,442 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
- Cooked mutton or beef
- Provides the main body of the dish; reheating in the sauce keeps it moist and tender.
- Flour
- Browned with the dripping and onion, it thickens the stock into a smooth sauce.
- Dripping
- Carries the browning of the onion and flour, adding richness and savoury flavour.
- Onion
- Browned in the fat, it adds sweetness and savoury depth to the sauce.
- Second stock
- Forms the liquid base of the sauce, giving body and meaty flavour.
The step that matters
Gradually add the stock. Adding stock slowly to the browned flour and fat lets the starch disperse evenly, preventing lumps and giving a smooth, well-thickened sauce.
Swap the onion
How well each one fits the dish's main ingredients (mutton, flour, bread, pepper, ketchup):
- Shallotfits better
- Capsicumfits better
- Turnipfits better
- Onionthe original
Fit is the average pairing score against mutton, flour, bread, pepper, ketchup. 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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