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. Potage & LA Puree De Pois.
Ingredients
Directions
Prepare
If using old peas, soak them overnight; if new, use immediately.
In a pot, combine peas, onion, carrot, leeks, celery, and bone or ham. Add butter, parsley, and small onions.
Add good soup to wet the mixture.
Make the soup
Once soaked, drain and beat the peas in a mortar.
Pass through a sieve with the drained juice.
Transfer to a saucepan.
Simmer for 4-5 hours, stirring often to prevent sticking. Skim the surface before stirring.
Serve
Serve over rice, vermicelli, or fried bread.
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).
-
Carrot + celerytop 1% of all pairsAroma overlapstrongMentioned together10,173 recipes
Shared aroma: myristicin (spice, warm).
-
Celery + parsleytop 1% of all pairsAroma overlapstrongMentioned together6,810 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Carrot + leektop 3% of all pairsAroma overlapstrongMentioned together1,310 recipes
Shared aroma: coumarin (sweet, hay).
-
Leek + celerytop 4% of all pairsAroma overlapstrongMentioned together1,093 recipes
Shared aroma: coumarin (sweet, hay).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Peas
- Form the body of the soup, thickening it as they break down and release starch.
- Butter
- Adds fat for a rounded, smooth mouthfeel and carries flavour from the aromatics.
- Leeks
- Contribute mild sweetness and aromatic depth as they soften during simmering.
- Bone or ham
- Adds savoury, meaty flavour to the stock as it simmers for hours.
The step that matters
Simmer gently and stir often. Peas and starches settle and scorch on the base of the pot during long simmering. Frequent stirring and gentle heat prevent sticking and burnt flavour, and skimming removes foam that would cloud the soup.
Flavor stand-ins for the onion
How well each one fits the dish's main ingredients (peas, carrot, leek, celery, ham, butter, parsley):
- Turnipbetter flavor fit
- Parsnipbetter flavor fit
- Shallotbetter flavor fit
- Onionthe original
Fit is the average pairing score against peas, carrot, leek, celery, ham, butter, parsley. 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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