Why it works: Pepper and parsley match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
With Clams
Ingredients
Directions
Prepare the clams
Wash and clean the clams well.
Put the clams in a saucepan with ½ cup of water and bring to a boil. Once boiling, drain the clams and set aside.
Make the soup
In the same pan, melt 2 ounces of butter and fry the chopped onion until soft.
Add the drained clam liquor, 1 pint of water, salt, pepper, and chopped parsley to the pan.
Add the clams and boil for 2 minutes.
Add a little more butter, mix well, and serve over croutons.
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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Pepper + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Onion + parsleytop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Clam + buttertop 11% of all pairsSmell alikemoderateCooked together840 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Butter + oniontop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Clams
- Provide the main flavour and body of the soup, with their liquor adding savoury depth.
- Butter
- Adds richness and carries flavour when melted to fry the onion.
- Onion
- Softened in butter, it builds a sweet, aromatic base for the broth.
The step that matters
Boiling the clams for 2 minutes. Clams open and turn rubbery when overcooked. Boiling only briefly until they open keeps them tender and prevents a tough, chewy texture.
Swap the onion
How well each one fits the dish's main ingredients (clam, butter, pepper, parsley):
- Potatofits better
- Capsicumfits better
- Shallotfits better
- Onionthe original
Fit is the average pairing score against clam, butter, pepper, parsley. 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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