Why it works: Butter and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and 124,287 recipes mention both. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Oyster Soup
Ingredients
Directions
Prepare the oysters
Remove gills from oysters and scald them in their own liquor.
Strain the oyster liquor and add it to the broth.
Make the soup
Thicken the broth with butter and flour, then simmer for 30 minutes.
Add the oysters, stir well, but do not let it boil.
Serve very 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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Butter + flourtop 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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Mutton + oystertop 16% of all pairsAroma overlapmoderateMentioned together317 recipes
Shared aroma: 2-nonenal (fatty, green).
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Mutton + buttertop 16% of all pairsAroma overlapmoderateMentioned together3,781 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Oyster + flourtop 25% of all pairsAroma overlapmoderateMentioned together4,582 recipes
Shared aroma: hexanal (grass, green).
Butter and flour 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 flavor and tender, briny texture once scalded and added at the end.
- Mutton broth
- Forms the savory base liquid that carries the flavor of the whole soup.
- Butter
- Enriches the broth and adds richness to the soup.
- Flour
- Thickens the broth, giving it body when cooked with the butter.
The step that matters
Add the oysters without boiling. Oysters toughen and shrink when boiled, so they should be added at the end and stirred gently just until heated through.
“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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