Why it works: Oyster and fish work together. They rank in the top 9% of all ingredient pairs, and cooks put them together in 496 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Live Cod with Oyster Sauce
Ingredients
Directions
Prepare the fish
Scale and wash the cod.
Make four or five incisions across the back, cutting down 1.5 inches deep.
Dredge the fish generously with coarse sea salt.
Let it sit for 2 hours.
Poach the cod
Place the fish in a long saucepan or fish kettle with a grater.
Cover with cold water.
Add a little salt.
Bring the water to a boil.
Reduce the heat so the fish quivers gently.
Cook for about 1 hour.
Drain the fish using a napkin.
Garnish with small sprigs of parsley.
Make the oyster sauce
Combine oyster juice and fish stock in a pot.
Thicken with butter and flour mixed together.
Boil and stir until cooked.
Add medium-sized oysters as needed.
Serve
Serve with oyster 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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Oyster + fishtop 9% of all pairsSmell alikemoderateCooked together496 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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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 + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + parsleytop 12% of all pairsSmell alikemoderateCooked together16,675 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Oyster + buttertop 12% of all pairsSmell alikemoderateCooked together8,184 recipes
Shared aroma: 2,6-nonadienal (cucumber, green).
Butter and flour barely smell alike, yet cooks put them together in 124,287 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
- Live cod
- Forms the main body of the dish, cooked gently in simmering water until flaky.
- Oyster juice
- Supplies the briny, savoury flavour that defines the sauce.
- Fish stock
- Adds savoury depth and liquid to the sauce base.
- Butter
- Enriches the sauce and adds richness and smooth mouthfeel.
- Flour
- Thickens the sauce so it coats the fish and oysters.
- Medium-sized oysters
- Add tender texture and a concentrated seafood flavour to the sauce.
The step that matters
Keep the water at a gentle quiver. A hard boil toughens and breaks up the delicate cod flesh, while gentle heat cooks it evenly and keeps it moist and tender.
Swap the parsley
How well each one fits the dish's main ingredients (oyster, fish, butter, flour):
- Capersfits better
- Parsleythe original
- Nutmegfits about as well
- Tarragonfits about as well
Fit is the average pairing score against oyster, fish, butter, flour. 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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