Why it works: Onion and potato are a kitchen classic. They rank in the top 3% of all ingredient pairs, and cooks put them together in 9,023 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
A Good Curry
Ingredients
Directions
Prepare the base
Trim the fat from the meat and fry lightly in the butter.
Fry the sliced onion until soft.
Sprinkle the curry powder and flour over the onion.
Make the sauce
Add the milk and stock or gravy, and stir until it boils.
Simmer
Add the chops, vegetables, and apple, then simmer gently for 1½ hours.
Stir in the coconut and salt to taste, and simmer for another 30 minutes.
Finish and serve
Squeeze in a few drops of lemon juice just before serving.
Serve with rice and garnish with parsley, pickled beetroot, or tomato.
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 + potatotop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Tomato + potatotop 5% of all pairsSmell alikestrongCooked together2,798 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + tomatotop 8% of all pairsSmell alikemoderateCooked together20,633 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Tomato + lemontop 11% of all pairsSmell alikemoderateCooked together4,592 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Potato + lemontop 12% of all pairsSmell alikemoderateCooked together2,230 recipes
Shared aroma: 2-nonenal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Flour
- Thickens the sauce as its starch swells when heated in the liquid.
- Curry powder
- Gives the dish its main spiced aroma and flavour once fried in fat.
- Onion
- Softens and turns sweet as it cooks, forming the base of the sauce.
- Milk
- Adds richness and a creamy body to the sauce.
- Potato
- Breaks down slightly during simmering, adding body to the sauce.
- Desiccated coconut
- Adds fat, a mild sweetness and a soft texture to the sauce.
The step that matters
Stirring the liquid in as it comes to the boil. Flour mixed into hot fat and then liquid can clump if the liquid is added without stirring. Constant stirring while the sauce heats lets the starch disperse and swell evenly, giving a smooth, thickened sauce.
Swap the apple
How well each one fits the dish's main ingredients (meat, onion, tomato, potato, lemon, sugar, flour):
- Avocadofits better
- Limefits better
- Cherryfits better
- Applethe original
Fit is the average pairing score against meat, onion, tomato, potato, lemon, sugar, flour. 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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