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 Bass
Ingredients
Directions
Prepare the poaching liquid
Fill a pot with enough water for the fish to swim easily.
Add vinegar, salt, onion, black peppercorns, and mace.
Cook the fish
Sew the fish in a piece of clean net, fitted to its shape.
Heat the pot slowly for the first 30 minutes.
Boil the fish for at least 8 minutes per pound at a fast boil.
Serve
Unwrap the fish and pour over it drawn butter mixed with the boiling liquid and lemon juice.
Garnish with sliced 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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Fish + buttertop 12% of all pairsSmell alikemoderateCooked together4,488 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Vinegar + oniontop 14% of all pairsSmell alikemoderateCooked together18,226 recipes
Shared aroma: acetic acid (sour, vinegar).
-
Onion + buttertop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
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Fish + lemontop 15% of all pairsSmell alikelowCooked together1,889 recipes
Shared aroma: 2-nonenal (fatty, green).
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Butter + lemontop 16% of all pairsSmell alikemoderateCooked together41,227 recipes
Shared aroma: 3-hexenal (apple, fruity).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Vinegar
- Adds acidity that brightens the flavor of the poaching liquid and the fish.
- Drawn butter
- Adds richness and fat that gives the finished fish a smooth, moist mouthfeel.
- Lemon juice
- Adds acidity that cuts the richness of the butter and balances the flavor.
The step that matters
Boil the fish at a fast boil for the full time. Fish proteins set and turn opaque as they heat, so the fish needs enough time in hot liquid to cook through. Heating slowly first lets the fish warm evenly before the faster boil.
Swap the mace
How well each one fits the dish's main ingredients (fish, vinegar, onion, butter, lemon):
- Tarragonfits better
- Parsleyfits better
- Thymefits better
- Macethe original
Fit is the average pairing score against fish, vinegar, onion, butter, lemon. 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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