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
Heat the milk in a large pot until very hot.
Add the butter and flour mixture to the hot milk and bring to a boil, stirring constantly.
Once boiling, add the oysters and cook until they curl up, indicating they are done.
Season with salt and red pepper to taste, stirring continuously.
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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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 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).
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Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, 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
- Oysters
- Main ingredient that gives the soup its flavor and tender texture when cooked until they curl.
- Milk
- Forms the liquid base of the soup and carries the flavor of the oysters.
- Butter
- Adds richness and fat to the soup, mellowing the flavor and giving a smooth mouthfeel.
- Flour
- Thickens the milk as it comes to a boil, giving the soup body.
The step that matters
Bringing the milk and butter-flour mixture to a boil while stirring constantly. Flour must be stirred continuously as the mixture heats, or it can clump and scorch on the bottom of the pot. Thickening starch needs to be evenly dispersed to give the soup a smooth, uniform body.
Swap the onion
How well each one fits the dish's main ingredients (oyster, milk, butter, flour, pepper):
- Potatofits better
- Shallotfits better
- Capsicumfits better
- Onionthe original
Fit is the average pairing score against oyster, milk, butter, flour, pepper. 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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