Why it works: Fish and sorrel work together. They rank in the top 17% of all ingredient pairs, and 25 recipes mention both. Both carry acetaldehyde, which smells pungent, ethereal. The science ↓
The recipe
Ingredients
Contains: milk, fish (auto-detected from the ingredients and method; we can miss things, so check labels)
Directions
Prepare the fish
Clean and wash the fish thoroughly.
Make the broth
Stew the fish with large carrots, half the number of lettuces, a handful of leeks, 4 onions, and a handful of sorrel in enough water to cover them until everything is soft.
Strain the mixture through a coarse cloth.
Boil the liquid, covered, for 1 hour.
Finish and serve
Prepare some of the previously mentioned vegetables, cut them small, and sauté them in butter.
Simmer the sautéed vegetables in the soup for 1 hour.
Season with pepper, salt, and a few cloves.
Soak a rasped French roll in the broth before serving.
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 aroma chemistry they share, and how many recipes mention both.
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Fish + sorreltop 17% of all pairsAroma overlaplowMentioned together25 recipes
Shared aroma: acetaldehyde (pungent, ethereal).
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Lettuce + sorreltop 1% of all pairsAroma overlapstrongMentioned together317 recipes
Shared aroma: coumarin (sweet, hay).
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Leek + sorreltop 2% of all pairsAroma overlapstrongMentioned together112 recipes
Shared aroma: coumarin (sweet, hay).
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Lettuce + leektop 3% of all pairsAroma overlapstrongMentioned together217 recipes
Shared aroma: trans-2-hexenal (green, leafy).
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Carrot + peppertop 3% of all pairsAroma overlapstrongMentioned together14,555 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Lettuces
- Adds body and a mild, savoury vegetable flavour to the broth.
- Butter
- Carries flavour and browns the vegetables before they join the soup.
- French roll
- Soaks up the broth and turns the soup into a thicker, bread-based dish.
- Sorrel
- Contributes a sharp, acidic note that brightens the broth.
Flavor stand-ins for the onion
How well each one fits the dish's main ingredients (fish, carrot, lettuce, leek, sorrel, butter, pepper):
- Potatobetter flavor fit
- Turnipbetter flavor fit
- Spinachbetter flavor fit
- Onionthe original
Fit is the average pairing score against fish, carrot, lettuce, leek, sorrel, butter, pepper. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).
“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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