Why it works: Cucumber and lettuce match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 1,409 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
A Cheap Green Peas Soup
Ingredients
Directions
Make the stock
Wash the pea shells thoroughly and place them in a pot with 3 quarts of boiling salted water.
Add the tender peas and cook for 20 to 30 minutes.
Simmer and serve
Peel, quarter, and seed the cucumbers, then add them to the pot along with the lettuces, onion, parsley, and mint.
Season with salt and pepper or cayenne, and simmer for 1 hour.
Strain the soup through a fine sieve, reheat, and serve with small fried bread snippets.
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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Cucumber + lettucetop 1% of all pairsSmell alikestrongCooked together1,409 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Parsley + peppertop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Peas + minttop 2% of all pairsSmell alikemoderateCooked together1,137 recipes
Shared aroma: 1-octen-3-ol (mushroom, earthy).
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Lettuce + parsleytop 5% of all pairsSmell alikestrongCooked together1,483 recipes
Shared aroma: trans-2-hexenal (green, leafy).
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Cucumber + minttop 5% of all pairsSmell alikemoderateCooked together884 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Pea shells
- Simmered in water to release flavour and body into the stock.
- Green peas
- Cooked until tender, adding sweetness and a thick, smooth body to the soup.
- Cucumbers
- Add a cool, fresh flavour and some moisture to the soup.
- Lettuces
- Add mild, vegetal flavour and body as they cook down in the broth.
- Onion
- Adds savoury depth and aroma to the base of the soup.
The step that matters
Strain through a fine sieve. Pressing the cooked solids through a fine sieve removes fibrous pieces and skins, giving the soup a smooth texture rather than a grainy or stringy one.
Swap the onion
How well each one fits the dish's main ingredients (peas, cucumber, lettuce, parsley, mint, pepper):
- Spinachfits better
- Beetrootfits better
- Cauliflowerfits better
- Onionthe original
Fit is the average pairing score against peas, cucumber, lettuce, parsley, mint, 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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