Why it works: Carrot and parsley match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and 8,053 recipes mention both. Both carry 2,4-decadienal, which smells seaweed. The science ↓
Green Pease Soup
Ingredients
Directions
Prepare the broth
Shell the peas and wash the shells.
Boil the shells in the broth from veal, lamb, mutton, or chicken for 30 minutes.
Strain off the shells and bring the broth to a boil.
Make the soup
Add the peas, salt, carrots, onions, lettuces, and parsley to the broth.
Boil for 30 minutes and serve.
For thickened soup, boil the old peas until they can be mashed through a colander.
Stir the pea pulp into the broth and simmer for 1 hour.
Add the bread crumbs and boil for a few minutes.
Boil the young peas separately and stir them into the soup before serving.
Season with salt and sugar, and add butter to the tureen before pouring in the soup.
Garnish
For fried cucumber slices, slice thin, remove seeds, drain, flour, and fry in butter 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.
Explore the science
The flavor team
The pairs that carry this dish. Each one is judged two ways: how much aroma chemistry they share, and how many recipes mention both.
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Carrot + parsleytop 1% of all pairsAroma overlapstrongMentioned together8,053 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Lettuce + parsleytop 5% of all pairsAroma overlapstrongMentioned together1,483 recipes
Shared aroma: trans-2-hexenal (green, leafy).
-
Peas + lettucetop 5% of all pairsAroma overlapstrongMentioned together1,293 recipes
Shared aroma: 2-isobutyl-3-methoxypyrazine (green bell pepper, earthy).
-
Carrot + lettucetop 6% of all pairsAroma overlapstrongMentioned together976 recipes
Shared aroma: 2-isobutyl-3-methoxypyrazine (green bell pepper, earthy).
-
Carrot + oniontop 6% of all pairsAroma overlapmoderateMentioned together21,601 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
- Provide the main flavour and, when mashed, the body of the soup.
- Bread crumbs
- Thicken the broth as they absorb liquid and soften during boiling.
- Butter
- Adds richness and a smooth mouthfeel when added to the tureen.
- Carrots
- Add sweetness and colour to the broth as they cook.
- Lettuces
- Add soft, mild leafy body that breaks down into the soup.
The step that matters
Stir the pea pulp into the broth and simmer for 1 hour. Mashed peas can settle and scorch on the bottom of the pot if not stirred and kept at a gentle simmer, which affects both texture and flavour.
Flavor stand-ins for the onion
How well each one fits the dish's main ingredients (peas, carrot, lettuce, parsley, veal, bread, butter):
- Leekbetter flavor fit
- Shallotbetter flavor fit
- Turnipbetter flavor fit
- Onionthe original
Fit is the average pairing score against peas, carrot, lettuce, parsley, veal, bread, butter. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).
“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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