Why it works: Mustard and horseradish match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 1,832 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Stewed Carp
Ingredients
Directions
Cook the carp
Place the cleaned carp in a stewpan with beef gravy, port wine, mustard, salt, and cayenne pepper.
Cover the stewpan and simmer gently for 15 minutes.
Remove the fish and set it on a serving dish.
Thicken and serve
In the stewpan, mix flour and butter to thicken the gravy, then bring to a boil.
Pour the thickened gravy over the fish and garnish with the roe, horseradish, and lemon.
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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Mustard + horseradishtop 1% of all pairsSmell alikestrongCooked together1,832 recipes
Shared aroma: coumarin (sweet, hay).
-
Mustard + peppertop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Beef + peppertop 10% of all pairsSmell alikemoderateCooked together18,971 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Flour + horseradishtop 10% of all pairsSmell alikestrongCooked together743 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Pepper + horseradishtop 11% of all pairsSmell alikemoderateCooked together2,646 recipes
Shared aroma: coumarin (sweet, hay).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Flour
- Thickens the gravy into a smooth, coating sauce when cooked with the butter.
- Butter
- Enriches the gravy with fat and helps the flour thicken it smoothly.
- Beef gravy
- Forms the savoury liquid that cooks the carp and becomes the sauce.
- Port wine
- Adds sweetness and depth of flavour to the cooking liquid.
The step that matters
Simmer gently for 15 minutes. A gentle simmer cooks the carp through without breaking it apart. Boiling hard can toughen the flesh and make the fish fall apart.
Swap the mustard
How well each one fits the dish's main ingredients (beef, port wine, pepper, flour, butter, roe, horseradish):
- Shallotfits better
- Chivefits about as well
- Mustardthe original
- Potatofits about as well
Fit is the average pairing score against beef, port wine, pepper, flour, butter, roe, horseradish. 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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