Why it works: Fish and butter match in chemistry and in kitchens. They rank in the top 5% of all ingredient pairs, and 4,432 recipes mention both. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
The recipe
Ingredients
Contains: milk, wheat, fish, shellfish (auto-detected from the ingredients and method; we can miss things, so check labels)
Directions
Prepare the fish and onions
Cut the fish into convenient pieces.
Scald the button onions and peel them.
Make the sauce
Brown the onions in a saucepan with butter.
Add the fish and the red wine, gravy, bay leaves, allspice, pepper, salt, carrot, and turnip.
Remove the cooked fish and keep it warm.
Thicken the gravy with flour and butter.
Add the button onions, mushrooms, scalded oysters, and fish quenelles.
Season the sauce with anchovy, lemon juice, and cayenne.
Bring the sauce to a boil.
Serve
Pour the hot sauce over the fish.
Garnish with crayfish.
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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Fish + buttertop 5% of all pairsAroma overlapstrongMentioned together4,432 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Carrot + turniptop 2% of all pairsAroma overlapmoderateMentioned together8,001 recipes
Shared aroma: coumarin (sweet, hay).
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Allspice + peppertop 3% of all pairsAroma overlapstrongMentioned together6,395 recipes
Shared aroma: estragole (anise, licorice).
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Pepper + carrottop 3% of all pairsAroma overlapstrongMentioned together14,555 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Allspice + carrottop 4% of all pairsAroma overlapstrongMentioned together1,021 recipes
Shared aroma: beta-phellandrene (minty, terpene).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Fish
- Forms the main body of the stew, flavouring the sauce as it cooks.
- Red wine
- Adds acidity and depth of flavour to the sauce.
- Gravy
- Provides the savoury base that the sauce is built on.
- Flour and butter
- Thicken the gravy into a smooth, coating sauce.
- Button onions
- Add sweetness and body once browned in butter.
- Mushrooms
- Add earthy savour and a meaty texture to the stew.
The step that matters
Bring the sauce to a boil. Once flour is added to the gravy, it must be heated enough to cook out its raw starch taste and to thicken properly. Boiling without stirring can scorch the bottom and leave lumps, so keep the sauce moving.
Flavor stand-ins for the allspice
How well each one fits the dish's main ingredients (fish, onion, butter, red wine, pepper, carrot, turnip):
- Parsleybetter flavor fit
- Celerybetter flavor fit
- Thymebetter flavor fit
- Allspicethe original
Fit is the average pairing score against fish, onion, butter, red wine, pepper, carrot, turnip. 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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