Why it works: Carrot and spinach match in chemistry and in kitchens. They rank in the top 5% of all ingredient pairs, and 870 recipes mention both. Both carry 2-isobutyl-3-methoxypyrazine, which smells green bell pepper, earthy. The science ↓
To Make Green Pease Soup
Ingredients
Directions
Make the broth
Shell the peas and boil them in spring water until soft.
Work the peas through a fine sieve.
Add some of the reserved water to the pea puree.
Add the knuckle of veal, ham, carrot, and beet leaves.
Boil for two hours and then strain the mixture.
Finish the soup
Mix the pulp back into the broth and add spinach juice for color.
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 + spinachtop 5% of all pairsAroma overlapstrongMentioned together870 recipes
Shared aroma: 2-isobutyl-3-methoxypyrazine (green bell pepper, earthy).
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Peas + carrottop 7% of all pairsAroma overlapmoderateMentioned together2,994 recipes
Shared aroma: 2-isobutyl-3-methoxypyrazine (green bell pepper, earthy).
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Peas + spinachtop 8% of all pairsAroma overlapmoderateMentioned together550 recipes
Shared aroma: 2-isobutyl-3-methoxypyrazine (green bell pepper, earthy).
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Veal + carrottop 15% of all pairsAroma overlaplowMentioned together3,015 recipes
Shared aroma: 2-nonenal (fatty, green).
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Veal + hamtop 15% of all pairsAroma overlaplowMentioned together3,264 recipes
Shared aroma: 2,4-decadienal (seaweed).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Peas
- Break down into a puree that gives the soup its body and thickness.
- Knuckle of veal
- Long simmering releases gelatin, adding richness and a silky body to the broth.
- Ham
- Adds savory, salty depth to the broth.
- Carrot
- Adds gentle sweetness and some body as it softens during the long boil.
- Spinach juice
- Adds the green color and a fresh, vegetal note to the finished soup.
The step that matters
Adding the spinach juice. Spinach juice is added for color. Its green chlorophyll dulls to olive-brown with prolonged heat, so it should be stirred in at the end rather than boiled with the soup.
Flavor stand-ins for the spinach
How well each one fits the dish's main ingredients (peas, veal, ham, carrot):
- Leekbetter flavor fit
- Turnipbetter flavor fit
- Asparagusbetter flavor fit
- Spinachthe original
Fit is the average pairing score against peas, veal, ham, carrot. 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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