Why it works: Celery and parsley match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 6,810 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Celery Soup with Oysters
Ingredients
Directions
Make the celery broth
Combine celery, onion, parsley, and boiling water in a saucepan; boil for 1 hour.
Heat the milk in a double boiler.
Thicken and finish
Mix flour with warm milk to form a smooth paste; add to the hot milk and stir until creamy.
Strain the celery mixture through a colander into the milk.
Add salt and pepper; bring to a boil.
Add the oysters; once it boils again, remove from heat and 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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Celery + parsleytop 1% of all pairsSmell alikestrongCooked together6,810 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Parsley + peppertop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Celery + peppertop 5% of all pairsSmell alikestrongCooked together16,012 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Celery + oniontop 7% of all pairsSmell alikemoderateCooked together18,518 recipes
Shared aroma: guaiacol (smoky, sweet).
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Onion + parsleytop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Celery
- Gives the soup its main flavor and body as it boils down in water.
- Oysters
- Add a briny, savory flavor and tender texture when cooked briefly at the end.
- Milk
- Forms the creamy base of the soup and adds richness and mild sweetness.
- Flour
- Thickens the milk into a creamy, smooth body when mixed to a paste first.
The step that matters
Adding the oysters. Oysters toughen and turn rubbery if they boil too long. Once the soup boils again, they should be removed from heat right away.
Swap the onion
How well each one fits the dish's main ingredients (celery, parsley, milk, flour, pepper, oyster):
- Carrotfits better
- Shallotfits better
- Parsnipfits better
- Onionthe original
Fit is the average pairing score against celery, parsley, milk, flour, pepper, oyster. 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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