Why it works: Parsley and pepper 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 ↓
Water Souchy
Ingredients
Directions
Make the stock
Make a stock by boiling flounders, onions, and parsley in water until soft.
Pulp the mixture through a sieve with the cooking liquid.
Season with pepper, salt, and chopped parsley.
Cook and serve
Boil additional flounders and cleaned perch or tench in the seasoned stock.
Serve in a tureen with slices of bread and butter.
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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Parsley + peppertop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Bread + buttertop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
-
Onion + parsleytop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + buttertop 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
- Flounders
- Provide the flavor base of the stock and the fish cooked into the soup.
- Onions
- Add sweetness and savory depth to the stock as they soften in the water.
- Parsley
- Adds a fresh, herbal aroma to the stock and the finished soup.
- Perch or tench
- Adds more fish body and flavor to the soup as it cooks in the stock.
Swap the onion
How well each one fits the dish's main ingredients (parsley, pepper, bread, butter):
- Carrotfits better
- Shallotfits better
- Capsicumfits better
- Onionthe original
Fit is the average pairing score against parsley, pepper, bread, butter. 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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