Why it works: Peas and lettuce 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 ↓
To Stew Green Peas
Ingredients
Directions
Prepare
Combine peas, sliced lettuce, sliced onion, butter, pepper, and salt in a pot.
Add just enough water to cover the vegetables.
Stew and serve
Stew gently for 2 hours.
If desired, beat the egg and stir it in before serving, or add flour and butter for thickness.
Garnish with chopped fresh mint 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.
Photo for illustrative purposes only · Contact us to use it
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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Peas + lettucetop 5% of all pairsSmell alikestrongCooked together1,293 recipes
Shared aroma: 2-isobutyl-3-methoxypyrazine (green bell pepper, earthy).
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Lettuce + oniontop 8% of all pairsSmell alikestrongCooked together3,562 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Lettuce + peppertop 9% of all pairsSmell alikemoderateCooked together4,037 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Lettuce + flourtop 11% of all pairsSmell alikestrongCooked together1,236 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 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
- Green peas
- Form the main body of the stew and give it its bulk and flavour.
- Lettuce
- Softens as it stews, adding moisture and a mild vegetal sweetness to the broth.
- Onion
- Releases sugars and aromatic compounds as it cooks slowly, adding savoury depth.
- Butter
- Adds fat and richness, carrying flavour and giving the stew a smoother mouthfeel.
- Egg
- If stirred in, it can thicken the stew slightly as its proteins set with heat.
- Flour
- If added, it thickens the liquid by absorbing water when heated.
The step that matters
Adding the egg before serving. Egg proteins set when heated, so stirring it into a very hot stew can scramble it into lumps. Beating it first and stirring it in gently off the heat helps it blend smoothly and thicken the liquid evenly.
Swap the onion
How well each one fits the dish's main ingredients (peas, lettuce, butter, pepper, egg, flour, sugar):
- Leekfits better
- Asparagusfits better
- Shallotfits better
- Onionthe original
Fit is the average pairing score against peas, lettuce, butter, pepper, egg, flour, sugar. 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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