Why it works: Fish and butter are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 4,488 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Boiled White Fish
Ingredients
Directions
Prepare the fish
Dress the fish nicely.
Cover the fish in a fish kettle with boiling water seasoned with coarse sea salt.
Remove the scum as it rises.
Simmer for 8 to 10 minutes per pound.
Add vinegar or lemon juice when about half done.
Drain and serve
Take out the fish. Drain.
Dish carefully.
Pour drawn butter over the fish.
Garnish with parsley sprigs.
Serve with egg sauce.
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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Fish + buttertop 12% of all pairsSmell alikemoderateCooked together4,488 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Butter + saucetop 15% of all pairsSmell alikelowCooked together15,338 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Butter + parsleytop 15% of all pairsSmell alikemoderateCooked together28,563 recipes
Shared aroma: trans-2-hexenal (green, leafy).
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Vinegar + parsleytop 16% of all pairsSmell alikemoderateCooked together6,477 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
Butter and sauce barely smell alike, yet cooks put them together in 15,338 recipes: they 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
- White fish
- Forms the main body of the dish, cooking gently to a flaky, moist texture.
- Vinegar or lemon juice
- Adds acidity that brightens the flavour of the mild fish.
- Drawn butter
- Adds richness and fat that complements the mild, lean fish.
The step that matters
Simmer for 8 to 10 minutes per pound. Simmering rather than boiling keeps the fish tender and prevents it from breaking apart. Overcooking toughens the proteins and dries the flesh, so timing per pound matters.
Swap the parsley
How well each one fits the dish's main ingredients (fish, vinegar, butter, egg, sauce):
- Capersfits better
- Tarragonfits better
- Parsleythe original
- Nutmegfits less well
Fit is the average pairing score against fish, vinegar, butter, egg, sauce. 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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