Why it works: Sorrel and lettuce 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 ↓
Menu for a Dinner of Six
Ingredients
Directions
Make the soup
Melt the butter in a light saucepan.
Add the finely shredded onion and cook until pale yellow.
Stir in the chopped sorrel and lettuce until they change color.
Pour in the thickened gravy and mix well.
Add the sugar, salt, and black pepper.
Boil for 5 minutes, then adjust thickness with more gravy if needed.
Reduce heat and let the mixture simmer for 30 minutes.
Serve
Prepare a circle of mashed potatoes and fill it with the hot puree.
Arrange grilled cutlets around the potato circle and garnish with watercress.
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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Sorrel + lettucetop 1% of all pairsSmell alikestrongCooked together317 recipes
Shared aroma: coumarin (sweet, hay).
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Onion + potatotop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Sorrel + potatotop 5% of all pairsSmell alikemoderateCooked together72 recipes
Shared aroma: coumarin (sweet, hay).
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Sorrel + flourtop 5% of all pairsSmell alikestrongCooked together231 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Lettuce + potatotop 7% of all pairsSmell alikestrongCooked together322 recipes
Shared aroma: 2-isobutyl-3-methoxypyrazine (green bell pepper, earthy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Sorrel
- Adds a sharp, lemony acidity that gives the soup its characteristic tang.
- Lettuce
- Softens into the puree, adding body and a mild green flavor.
- Onion
- Builds a sweet, savory base as it cooks gently in butter.
- Butter
- Carries the onion's flavor and adds richness to the soup.
- Gravy
- Provides the liquid and savory depth, thickened further with flour.
The step that matters
Simmering after the sorrel and lettuce go in. Sorrel loses its bright color and turns dull when overcooked, and the long simmer can reduce its fresh tang. Keeping the heat low and the time controlled helps preserve both flavor and appearance.
Swap the onion
How well each one fits the dish's main ingredients (butter, sorrel, lettuce, flour, sugar, pepper, potato):
- Beetrootfits better
- Leekfits better
- Chivefits better
- Onionthe original
Fit is the average pairing score against butter, sorrel, lettuce, flour, sugar, pepper, potato. 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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