Why it works: Butter and milk 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 oysters
Blanch the oysters without boiling them.
Strain and save the liquor.
Make the soup
Melt the butter in a stewpan.
Add the flour and stir for a few minutes.
Add the oyster liquor, veal stock, and milk to the stewpan.
Season with salt, peppercorns, cayenne, mace, Harvey sauce, and essence of anchovies.
Strain the mixture through a fine sieve.
Let it boil for 10 minutes.
Serve
Place the oysters in a tureen.
Add the cream.
Pour the boiling soup over the oysters.
Serve.
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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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Oyster + buttertop 12% of all pairsSmell alikemoderateCooked together8,184 recipes
Shared aroma: 2,6-nonadienal (cucumber, green).
-
Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Oyster + saucetop 14% of all pairsSmell alikemoderateCooked together2,233 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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
- Oysters
- Provide the main flavour and texture of the soup.
- Butter
- Carries the flour and adds richness to the base.
- Flour
- Thickens the stock and milk into a smooth, body-rich soup.
- Veal stock
- Forms the savoury liquid base of the soup.
- Milk
- Adds creaminess and softens the flavour of the soup.
- Cream
- Adds richness and a silky mouthfeel at the end.
The step that matters
Blanch the oysters without boiling them. Boiling toughens oyster flesh and makes it shrink and turn rubbery. Brief heat just firms the edges while keeping the oysters tender.
Swap the mace
How well each one fits the dish's main ingredients (oyster, butter, flour, veal, milk, pepper, sauce):
- Capersfits better
- Parsleyfits better
- Nutmegfits better
- Macethe original
Fit is the average pairing score against oyster, butter, flour, veal, milk, pepper, sauce. 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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