Why it works: Butter and cream match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and 41,494 recipes mention both. Both carry delta-dodecalactone, which smells sweet, creamy. The science ↓
The recipe
Ingredients
Contains: milk, wheat, fish (auto-detected from the ingredients and method; we can miss things, so check labels)
Directions
Cook the fish
Fry the fish and onions in butter until nicely browned.
Transfer the fish and onions to a stewpan.
Make the sauce
Add the white stock and thickening, then simmer for 10 minutes.
Stir the curry powder into the cream, then add it along with seasoning to the stewpan.
Bring to a boil and serve.
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 aroma chemistry they share, and how many recipes mention both.
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Butter + creamtop 3% of all pairsAroma overlapstrongMentioned together41,494 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Fish + buttertop 5% of all pairsAroma overlapstrongMentioned together4,432 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Butter + flourtop 6% of all pairsAroma overlaplowMentioned together122,858 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Onion + peppertop 6% of all pairsAroma overlapmoderateMentioned together68,463 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Butter + oniontop 7% of all pairsAroma overlapmoderateMentioned together42,827 recipes
Shared aroma: guaiacol (smoky, sweet).
Butter and flour share little aroma chemistry, yet 122,858 recipes mention both: they likely 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
- Cod
- Forms the flaky, tender pieces that make up the body of the dish.
- Butter
- Fat that browns the fish and onions, adding richness and savory flavor.
- Onion
- Softens and browns in butter, adding sweetness and depth to the dish.
- White stock
- Liquid base that carries the flavors and forms the body of the sauce.
- Flour
- Thickens the stock and butter mixture into a smooth sauce.
- Curry powder
- Supplies the warm, aromatic spice flavor that defines the dish.
The step that matters
Stirring the curry powder into the cream before adding it. Curry powder blooms and mixes evenly when stirred into the cream first, so it disperses smoothly instead of clumping in the sauce. Cream also helps mellow the spice.
Flavor stand-ins for the onion
How well each one fits the dish's main ingredients (fish, butter, flour, cream, pepper):
- Potatobetter flavor fit
- Capsicumabout as good a flavor fit
- Asparagusabout as good a flavor fit
- Onionthe original
Fit is the average pairing score against fish, butter, flour, cream, pepper. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).
“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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