Why it works: Lettuce and peas match in chemistry and in kitchens. They rank in the top 5% of all ingredient pairs, and cooks put them together in 1,293 recipes. Both carry 2-isobutyl-3-methoxypyrazine, which smells green bell pepper, earthy. The science ↓
Peas, Green, Puree, Vegetarian
Ingredients
Directions
Prepare
Cut the lettuce into shreds and place it in an enamelled saucepan with the shelled peas and butter or oil.
In another pan, boil the pea shells with water, a little salt, and sugar until reduced and flavored.
Cook and thicken
Cook the peas gently in the butter with a spoonful or two of water until soft.
Add some of the flavored liquor from the shells and rub some shells through a sieve into the peas.
Alternatively, mash the peas with a fork before adding the liquor.
Stir in white thickening and a few drops of green coloring, then season to taste.
Serve
Serve hot with toast and poached or fried eggs.
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 + peastop 5% of all pairsSmell alikestrongCooked together1,293 recipes
Shared aroma: 2-isobutyl-3-methoxypyrazine (green bell pepper, earthy).
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Peas + buttertop 16% of all pairsSmell alikemoderateCooked together4,887 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Butter + sugartop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
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Sugar + eggtop 21% of all pairsSmell alikemoderateCooked together122,807 recipes
Shared aroma: 2-nonenal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Peas
- Provide the main body and green flavor of the puree once cooked and mashed or sieved.
- Butter or olive oil
- Adds fat and richness and helps cook the lettuce and peas gently without browning.
- White thickening
- Thickens the liquid so the puree sets to a smooth, spoonable texture.
- Lettuce
- Adds moisture and soft body that helps the peas break down into a puree.
The step that matters
Cook the peas gently until soft. Gentle heat with a little water softens the peas evenly without scorching the butter. Thorough softening lets the puree become smooth when mashed or sieved.
Swap the lettuce
How well each one fits the dish's main ingredients (peas, butter, sugar, egg):
- Asparagusfits better
- Leekfits better
- Sweet potatofits better
- Lettucethe original
Fit is the average pairing score against peas, butter, sugar, egg. 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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