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 ↓
Clam Soup
Ingredients
Directions
Make the soup
Boil the knuckle of veal in 3 quarts of salted water.
Add the clams and their juice, along with pepper, parsley, and onions. If the clams are small, use more.
Add the dumplings
Make small dumplings by mixing the egg, butter, and enough flour to form a paste.
Add the dumplings to the soup and cook until done.
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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Parsley + oniontop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Pepper + oniontop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Clam + buttertop 11% of all pairsSmell alikemoderateCooked together840 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
Butter and flour barely smell alike, yet cooks put them together in 124,287 recipes: they 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
- Veal knuckle
- Gives the broth its body and savory meaty flavor as it simmers.
- Clams
- Release their juice into the broth, adding a briny, oceanic flavor.
- Egg
- Binds the flour and butter so the dumplings hold together while cooking.
- Flour
- Forms the paste that gives the dumplings their structure and body.
- Butter
- Adds richness and fat that softens the dumplings and carries flavor.
The step that matters
Add the dumplings to the soup and cook until done. Dumplings must be fully cooked through in the simmering liquid; flour paste stays doughy and raw in the centre if the soup is not cooked long enough.
Swap the onion
How well each one fits the dish's main ingredients (veal, clam, pepper, parsley, egg, butter, flour):
- Shallotfits better
- Potatofits better
- Capsicumfits better
- Onionthe original
Fit is the average pairing score against veal, clam, pepper, parsley, egg, butter, flour. 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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