Why it works: Onion and chicken are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 17,814 recipes. Both carry gamma-nonanolactone, which smells coconut, sweet. The science ↓
To Curry Chicken
Ingredients
Directions
Slice the onion and brown it in a little butter.
Add the curry powder and cover for a few minutes to cook.
Add more butter and the cut-up chicken or veal.
Thicken the mixture with flour.
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 + chickentop 8% of all pairsSmell alikemoderateCooked together17,814 recipes
Shared aroma: gamma-nonanolactone (coconut, sweet).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Onion + buttertop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
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Butter + chickentop 15% of all pairsSmell alikemoderateCooked together13,902 recipes
Shared aroma: 2-furfurylthiol (coffee, roasted).
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Onion + flourtop 17% of all pairsSmell alikemoderateCooked together32,460 recipes
Shared aroma: isobutyraldehyde (malty, green).
Butter and flour barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Onion
- Browned in butter, it builds a sweet, savoury base for the sauce.
- Butter
- Carries the curry flavour and enriches the dish with fat, helping it brown.
- Curry powder
- Provides the main aroma and spice flavour of the dish.
- Chicken or veal
- Forms the protein of the dish, cooked in the spiced onion mixture.
- Flour
- Thickens the cooking liquid into a smoother, more cohesive sauce.
The step that matters
Cooking the curry powder. Curry powder needs a few minutes of gentle heat in fat to bloom and release its aromatic compounds. Adding it to liquid without this step leaves the spice tasting raw and dusty.
Swap the onion
How well each one fits the dish's main ingredients (butter, chicken, flour):
- Leekfits better
- Potatofits better
- Shallotfits about as well
- Onionthe original
Fit is the average pairing score against butter, chicken, 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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