Why it works: Butter and cream are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 41,516 recipes. Both carry delta-dodecalactone, which smells sweet, creamy. The science ↓
Gravy for Curried Fish
Ingredients
Directions
Melt the butter in a saucepan.
Fry the sliced onions in the butter until lightly browned.
Drain the onions from the fat and mix with the stock and apples.
Simmer gently until the onions are tender enough to press through a sieve.
Boil the mixture again, then thicken with flour and curry powder mixed with a little cold water.
Add salt and boil for 30 minutes.
Just before serving, stir in the cream.
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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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + appletop 14% of all pairsSmell alikemoderateCooked together8,706 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Butter + oniontop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
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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
- Onions
- Soften and sweeten as they cook, and their body thickens the gravy when pressed through a sieve.
- Flour
- Thickens the stock into a smooth gravy as it boils.
- Curry powder
- Adds spiced aroma and flavour to the stock.
- Apples
- Add sharpness and natural sweetness that balance the curry.
- Cream
- Adds richness and a silky texture when stirred in at the end.
The step that matters
Thickening with flour and curry powder. Flour mixed with cold water first disperses evenly, so it does not form lumps when it meets the hot stock. Curry powder bloomed in a little liquid also avoids gritty pockets in the gravy.
Swap the apple
How well each one fits the dish's main ingredients (butter, onion, flour, cream):
- Avocadofits better
- Coconutfits better
- Raisinfits better
- Applethe original
Fit is the average pairing score against butter, onion, flour, cream. 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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