Why it works: Onion and horseradish match in chemistry and in kitchens. They rank in the top 7% of all ingredient pairs, and cooks put them together in 1,784 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Sturgeon, to Stew
Ingredients
Directions
Make the gravy
Combine gravy, salt, black pepper, sweet herbs, onions, horseradish, and vinegar in a pot.
Bring the mixture to a boil for a few minutes.
Remove the pot from heat.
Let the mixture cool slightly.
Cook the fish
Add the fish to the pot.
Gradually bring the mixture back to a boil.
Stew gently until the fish begins to break apart.
Remove the pot from heat.
Keep the fish warm.
Finish the gravy and serve
Strain the gravy.
Thicken the strained gravy with butter.
Stir in the port or sherry, nutmeg, and lemon juice.
Simmer the gravy until it thickens.
Pour the thickened gravy over the fish.
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 + horseradishtop 7% of all pairsSmell alikestrongCooked together1,784 recipes
Shared aroma: coumarin (sweet, hay).
-
Pepper + horseradishtop 11% of all pairsSmell alikemoderateCooked together2,646 recipes
Shared aroma: coumarin (sweet, hay).
-
Corn + peppertop 11% of all pairsSmell alikemoderateCooked together5,324 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Pepper + oniontop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Vinegar + sherrytop 11% of all pairsSmell alikemoderateCooked together660 recipes
Shared aroma: 4-ethyl-2-methoxyphenol (smoky, clove).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Butter
- Enriches the strained gravy, giving it body and a rich, glossy texture.
- Port or sherry wine
- Adds sweetness and depth of flavour to the finished gravy.
- Vinegar
- Adds acidity that sharpens the gravy and balances its richness.
- Onions
- Build savoury flavour in the gravy as they cook with the liquid.
The step that matters
Stew the fish gently after adding it. Once the gravy returns to a boil, fish can overcook and fall apart too quickly. Gentle heat keeps the flesh moist and in pieces rather than turning it dry and mushy.
Swap the horseradish
How well each one fits the dish's main ingredients (fish, corn, pepper, onion, vinegar, butter, sherry):
- Capsicumfits better
- Potatofits better
- Tomatofits better
- Horseradishthe original
Fit is the average pairing score against fish, corn, pepper, onion, vinegar, butter, sherry. 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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