Why it works: Lettuce and sorrel match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 317 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Fish Soupe-maigre
Ingredients
Directions
Prepare the broth
Clean and wash the fish thoroughly.
Stew the fish with carrots, lettuce, leeks, onions, and 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.
Cook the vegetables
Cut some of the vegetables small and flour them.
Cook the floured vegetables in butter.
Simmer the cooked vegetables in the soup for 1 hour with pepper, salt, and cloves.
Finish and serve
Soften the French roll in good broth.
Mix the egg yolks with a few crumbs, then stir the egg yolk mixture into the soup.
Pour the soup over the softened roll.
Add the pulp of peas and some of the water used to boil them, along with butter, pepper, and salt to adjust consistency.
Stir often and boil until ready to serve.
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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Lettuce + sorreltop 1% of all pairsSmell alikestrongCooked together317 recipes
Shared aroma: coumarin (sweet, hay).
-
Leek + sorreltop 1% of all pairsSmell alikestrongCooked together112 recipes
Shared aroma: coumarin (sweet, hay).
-
Lettuce + leektop 1% of all pairsSmell alikestrongCooked together217 recipes
Shared aroma: trans-2-hexenal (green, leafy).
-
Carrot + leektop 3% of all pairsSmell alikestrongCooked together1,310 recipes
Shared aroma: coumarin (sweet, hay).
-
Leek + oniontop 4% of all pairsSmell alikestrongCooked together1,326 recipes
Shared aroma: ethyl butyrate (apple, fruity).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Egg yolks
- Thicken the soup and enrich it into a smooth, creamy texture.
- French roll
- Soaks up broth to give the soup body and a soft, bread-based texture.
- Butter
- Cooks the floured vegetables and adds richness and flavor to the soup.
- Fish
- Gives the broth its main savory flavor as it stews.
The step that matters
Stirring egg yolks into the soup. Adding hot yolks directly can scramble them into lumps. Stirring them in gradually off the heat, while whisking, keeps the soup smooth and thickened.
Swap the onion
How well each one fits the dish's main ingredients (fish, carrot, lettuce, leek, sorrel, butter, pepper):
- Turnipfits better
- Beetrootfits better
- Shallotfits better
- 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.
“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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