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 ↓
Mutton and Oyster Soup
Ingredients
Directions
Prepare the broth
Crack the bone of the cold mutton and chop the leftover bits.
Put the mutton and bones in 2 quarts of water and boil down to 1 quart.
Strain the broth, cool, and skim off the fat.
If no stock is available, add 2 quarts of water to the meat and bones and boil down to 1 quart, then strain.
Finish the soup
Heat the broth to boiling, then add the oysters with their liquor.
Season with pepper, salt, and a little mace, and boil for 1 minute.
Stir in the butter and flour mixture, simmer for 2 minutes, and then pour out.
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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Pepper + macetop 16% of all pairsAroma overlaplowMentioned together12,257 recipes
Shared aroma: myristicin (spice, warm).
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Mutton + oystertop 16% of all pairsAroma overlapmoderateMentioned together317 recipes
Shared aroma: 2-nonenal (fatty, green).
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Mutton + peppertop 16% of all pairsAroma overlaplowMentioned together5,442 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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
- Cold mutton
- Provides the meat flavour and body that forms the base of the broth.
- Oysters
- Add their briny flavour and tender texture to the finished soup.
- Butter and flour
- Together they form a roux that lightly thickens the soup.
The step that matters
Adding the oysters to the boiling broth. Oysters cook very quickly and turn firm and rubbery if boiled too long. Adding them to hot broth and boiling only briefly keeps them tender and their liquor flavourful.
Flavor stand-ins for the mace
How well each one fits the dish's main ingredients (mutton, oyster, pepper, butter, flour):
- Parsleybetter flavor fit
- Capersbetter flavor fit
- Turmericbetter flavor fit
- Macethe original
Fit is the average pairing score against mutton, oyster, pepper, butter, flour. 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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