Why it works: Onion and rice are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 10,433 recipes. Both carry 2,4-decadienal, which smells seaweed. The science ↓
Curried Cod
Ingredients
Directions
Make the sauce
Melt the butter in a stewpan over medium heat.
Add the chopped onion and apple, and fry until light brown.
In a bowl, mix the curry powder, cornflour, mulligatawny paste, and salt with a little gravy to form a smooth paste.
Add the paste to the frying pan and stir in the remaining gravy.
Bring to a boil, then let it simmer gently for 10 minutes.
Strain the sauce into a clean saucepan and add the cod.
Cook and serve
Simmer the cod for 30 minutes.
Remove the fish and pour the sauce around it.
Garnish with hard-boiled eggs if desired.
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 + ricetop 9% of all pairsSmell alikemoderateCooked together10,433 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Apple + ricetop 13% of all pairsSmell alikemoderateCooked together1,311 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Apple + buttertop 14% of all pairsSmell alikemoderateCooked together8,706 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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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 + ricetop 16% of all pairsSmell alikemoderateCooked together9,645 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
- Cod
- Forms the main body of the dish, becoming tender as it simmers gently in the sauce.
- Onion
- Softens and browns during frying, adding sweetness and savory depth to the sauce.
- Apple
- Softens into the sauce, adding gentle sweetness that balances the curry spices.
- Curry powder
- Provides the main spiced aroma and flavor that defines the dish.
- Cornflour
- Thickens the sauce so it clings to the fish instead of running off.
- Butter
- Fats the onion and apple as they fry, carrying flavor and aiding browning.
The step that matters
Simmering the cod gently. Fish is delicate; a hard boil toughens its proteins and breaks it apart, so keep the sauce at a gentle simmer while the cod cooks.
Swap the apple
How well each one fits the dish's main ingredients (onion, butter, rice):
- Coconutfits better
- Avocadofits better
- Mangofits better
- Applethe original
Fit is the average pairing score against onion, butter, rice. 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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