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 ↓
Stewed Fish
Ingredients
Directions
Prepare
Sprinkle the fish slices with coarse sea salt.
Boil the sliced onions until tender, then drain the water.
Make the stew
Season the onions with pepper, add 2 cups of hot water and a little parsley.
Simmer the fish in the onion mixture until thoroughly cooked.
Serve
Serve hot.
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).
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Fish + parsleytop 18% of all pairsSmell alikelowCooked together2,341 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Fish + oniontop 19% of all pairsSmell alikelowCooked together1,924 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
- Fish
- Provides the main protein, which firms and turns opaque as it cooks through in the stew.
- Onions
- Soften when boiled and add sweetness and body to the cooking liquid.
The step that matters
Simmer the fish until thoroughly cooked. Fish is done when its flesh turns opaque and flakes easily. Stopping early leaves it translucent in the centre, while overcooking makes it dry and tough, so check it gently with a fork.
Swap the onion
How well each one fits the dish's main ingredients (fish, pepper, parsley):
- Carrotfits better
- Capsicumfits better
- Shallotfits better
- Onionthe original
Fit is the average pairing score against fish, 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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