Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Oyster Soup
Ingredients
Directions
Prepare the stock
Remove the gills from the oysters.
Place the oysters with their liquor and the stock in a saucepan, then boil gently for 30 minutes.
If the stock is not flavored, add onion, turnip, carrot, and celery to cook with it, then strain.
Make the soup base
Melt the butter in a pan without browning it, then add the flour and mix until smooth.
Pour in the stock and stir constantly over heat until boiling.
Season with white pepper, salt, anchovy sauce, and cayenne pepper.
Finish and serve
In a bowl, beat the egg yolks with the milk, then strain this mixture into the soup, which should be slightly cooled.
Reheat the soup without boiling.
Add the oysters, cut in half, and cook for a few minutes before serving.
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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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Oyster + anchovytop 8% of all pairsSmell alikemoderateCooked together603 recipes
Shared aroma: decanal (soap, orange peel).
-
Oyster + fishtop 9% of all pairsSmell alikemoderateCooked together496 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Fish + anchovytop 9% of all pairsSmell alikelowCooked together637 recipes
Shared aroma: decanal (soap, orange peel).
-
Fish + buttertop 12% of all pairsSmell alikemoderateCooked together4,488 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Oysters
- Provide the main flavor and tender bite of the soup.
- Egg yolks
- Thicken the soup and give it a smooth, rich body when heated gently.
- Milk
- Adds creaminess and mildness, softening the briny seafood flavor.
- Butter
- Carries flavor and enriches the base when melted with the flour.
- Flour
- Thickens the stock into a smooth base when cooked with the butter.
The step that matters
Adding the egg yolk mixture. If the soup is too hot when the egg yolks and milk go in, the yolks can scramble and curdle. Cooling the soup slightly and reheating without boiling keeps the custard-like thickening smooth.
“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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