Why it works: Fish and oyster work together. They rank in the top 9% of all ingredient pairs, and 496 recipes mention both. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Oyster Soup
Ingredients
Directions
Make the stock base
In a mortar, beat the yolks of the hard‑boiled eggs and the hard parts of the oysters.
Add this mixture to the fish stock.
Simmer for 30 minutes.
Strain the soup.
Finish the soup
Return the strained soup to the pot with the cleaned oysters.
Simmer for 5 minutes.
Beat the raw egg yolks.
Add the beaten raw egg yolks to the soup, stirring gently until thick and smooth without boiling.
Serve hot.
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 aroma chemistry they share, and how many recipes mention both.
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Fish + oystertop 9% of all pairsAroma overlapmoderateMentioned together496 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Fish + buttertop 12% of all pairsAroma overlapmoderateMentioned together4,488 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Flour + buttertop 12% of all pairsAroma overlaplowMentioned together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Oyster + buttertop 12% of all pairsAroma overlapmoderateMentioned together8,184 recipes
Shared aroma: 2,6-nonadienal (cucumber, green).
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Egg + oystertop 14% of all pairsAroma overlapmoderateMentioned together4,103 recipes
Shared aroma: 2-nonenal (fatty, green).
Flour and butter share little aroma chemistry, yet 124,287 recipes mention both: they likely 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
- Oysters
- Provide the main flavour and tender body of the soup.
- Hard-boiled egg yolks
- Add richness and body to the broth when beaten and simmered in it.
- Raw egg yolks
- Thicken the soup gently as they set with heat, giving a smooth texture.
- Fish stock
- Forms the liquid base that carries the soup's savoury flavour.
The step that matters
Adding the raw egg yolks. Egg yolks thicken by gentle heat; if the soup boils after they go in, they can curdle and turn grainy instead of smooth and thick.
“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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