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
Add the pounded yolks of the hard-boiled eggs and the beards and hard parts of the oysters to the fish stock.
Simmer for half an hour, then strain the liquid into a fresh pot with the best parts of the oysters.
Add mace and cayenne, and let it simmer for eight minutes.
Finish and serve
Mix the yolks of two eggs with a little cold fish stock and cream, then stir into the hot soup carefully to avoid curdling.
Squeeze lemon juice into the serving bowl and pour the soup over it.
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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Egg + oystertop 14% of all pairsAroma overlapmoderateMentioned together4,103 recipes
Shared aroma: 2-nonenal (fatty, green).
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Fish + lemontop 15% of all pairsAroma overlaplowMentioned together1,889 recipes
Shared aroma: 2-nonenal (fatty, green).
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Oyster + creamtop 17% of all pairsAroma overlapmoderateMentioned together2,886 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
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Mace + creamtop 18% of all pairsAroma overlaplowMentioned together4,009 recipes
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Egg yolks thicken the soup slightly and give it a richer, smoother body when stirred in gently.
- Oysters
- They supply the main flavour of the soup, with their hard parts adding savour during simmering.
- Fish stock
- The liquid base that carries the flavour of the whole soup.
- Cream
- Adds fat and softness, rounding the flavour and smoothing the texture of the soup.
- Lemon juice
- Adds acidity that brightens the rich, savoury broth.
The step that matters
Stirring in the egg yolks. Egg yolks set at around 70°C and can scramble if the soup is too hot or added too quickly. Tempering them with some warm liquid first and stirring steadily keeps the soup smooth and creamy.
Flavor stand-ins for the mace
How well each one fits the dish's main ingredients (fish, egg, oyster, cream, lemon):
- Parsleybetter flavor fit
- Nutmegbetter flavor fit
- Tarragonbetter flavor fit
- Macethe original
Fit is the average pairing score against fish, egg, oyster, cream, lemon. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).
“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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