Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Curry Sauce
Ingredients
Directions
Make the curry base
Melt the butter in a saucepan.
Add the chopped onion and sauté until soft.
Stir in the curry powder and sour milk.
Stew
Stew the mixture for at least 20 minutes.
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.
Photo for illustrative purposes only · Contact us to use it
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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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Onion + buttertop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
-
Onion + milktop 20% of all pairsSmell alikemoderateCooked together13,418 recipes
Shared aroma: hexanal (green, grassy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Onion
- Forms the flavour base and turns sweet and soft as it cooks.
- Butter
- Fat that softens the onion and carries the spice flavour through the sauce.
- Curry powder
- Supplies the main spice aroma and flavour of the sauce.
- Sour milk
- Adds tangy acidity that balances the rich fat and spices.
The step that matters
Stew the mixture for at least 20 minutes. Long, gentle cooking lets raw spice flavours mellow and blend with the onion and butter. Stopping early leaves the sauce tasting harsh and unintegrated.
Swap the onion
How well each one fits the dish's main ingredients (butter, milk):
- Potatofits better
- Asparagusfits about as well
- Leekfits about as well
- Onionthe original
Fit is the average pairing score against butter, milk. 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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