Why it works: Butter and mushroom are a kitchen classic. They rank in the top 7% of all ingredient pairs, and 12,525 recipes mention both. Both carry trans-2-decenal, which smells waxy, orange. The science ↓
Oyster Soup Maigre
Ingredients
Directions
In a large pot, bring 4 pints of water to a boil.
Add 5 or 6 fried onions, mace, coarse sea salt, pepper, and your choice of herbs.
Boil and skim the mixture carefully.
Stir in 1 lb of fresh butter and a few mushrooms.
Add 100 oysters and thicken with vermicelli.
Let the soup boil gently for 15 minutes until finished.
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 + mushroomtop 7% of all pairsAroma overlapmoderateMentioned together12,525 recipes
Shared aroma: trans-2-decenal (waxy, orange).
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Onion + mushroomtop 10% of all pairsAroma overlapmoderateMentioned together10,626 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Onion + peppertop 11% of all pairsAroma overlapmoderateMentioned together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Pepper + mushroomtop 11% of all pairsAroma overlapmoderateMentioned together13,580 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Butter + oystertop 12% of all pairsAroma overlapmoderateMentioned together8,184 recipes
Shared aroma: 2,6-nonadienal (cucumber, green).
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, cooking briefly in the broth.
- Vermicelli
- Thickens the broth as its starch softens during simmering.
- Fresh butter
- Adds richness and a rounded, silky mouthfeel to the broth.
- Onions
- Build sweetness and savoury depth as they are fried before going into the broth.
- Mushrooms
- Add earthy savour and some body to the soup.
The step that matters
Adding the oysters. Oysters toughen and turn rubbery and shrink when boiled hard for too long. Adding them near the end and keeping the simmer gentle preserves their tenderness and delicate flavour.
Flavor stand-ins for the mace
How well each one fits the dish's main ingredients (onion, pepper, butter, mushroom, oyster):
- Thymebetter flavor fit
- Garlicbetter flavor fit
- Parsleybetter flavor fit
- Macethe original
Fit is the average pairing score against onion, pepper, butter, mushroom, oyster. 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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