Why it works: Carrot and turnip match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and 8,002 recipes mention both. Both carry coumarin, which smells sweet, hay. The science ↓
The Best Yellow Pease-soup
Ingredients
Directions
Prepare
Soak the split peas in lukewarm water for 2 hours if very old.
In a soup pot, combine soaked peas and soft water.
Add shin beef, bacon, carrots, turnips, and onions.
Simmer and strain
Skim the surface and simmer slowly for 1.5 hours, ensuring it doesn't stick to the pot.
Add 1 quart of boiling water if needed and simmer until peas are completely dissolved.
Strain the soup through a coarse sieve into a clean pot.
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.
-
Carrot + turniptop 1% of all pairsAroma overlapstrongMentioned together8,002 recipes
Shared aroma: coumarin (sweet, hay).
-
Turnip + oniontop 5% of all pairsAroma overlapstrongMentioned together7,585 recipes
Shared aroma: coumarin (sweet, hay).
-
Carrot + peppertop 6% of all pairsAroma overlapstrongMentioned together14,555 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Carrot + oniontop 6% of all pairsAroma overlapmoderateMentioned together21,601 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Beef + oniontop 7% of all pairsAroma overlapmoderateMentioned together17,092 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
- Split peas
- Break down during long simmering to thicken the soup and give it body.
- Shin beef
- Releases flavor and gelatin into the broth during slow simmering, adding richness.
- Bacon
- Adds smoky, fatty flavor that seasons the broth as it cooks.
- Onions
- Build savory sweetness and aromatic depth as they soften in the broth.
- Carrots
- Add natural sweetness and body to the soup as they cook down.
The step that matters
Simmer slowly and stir against sticking. Split peas are starchy and settle on the pot bottom, where they scorch easily. Gentle heat and attention keep the soup from burning and tasting bitter while the peas break down fully.
Flavor stand-ins for the onion
How well each one fits the dish's main ingredients (peas, beef, carrot, turnip, pepper):
- Leekbetter flavor fit
- Parsnipbetter flavor fit
- Spinachbetter flavor fit
- Onionthe original
Fit is the average pairing score against peas, beef, carrot, turnip, pepper. 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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