Why it works: Carrot and parsley match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 8,053 recipes. Both carry 2,4-decadienal, which smells seaweed. The science ↓
Scotch Potato Soup
Ingredients
Directions
Start the broth
Add the mutton and cold water to a large pot. Bring to a boil.
Add the vegetables and simmer
Add the potatoes, grated carrots, and turnips.
Finely chop the cabbage, onion, and parsley, then add to the pot.
Simmer slowly for four hours, skimming the surface often.
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 their aromas overlap, and how often cooks already put them together.
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Carrot + parsleytop 1% of all pairsSmell alikestrongCooked together8,053 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Carrot + turniptop 1% of all pairsSmell alikestrongCooked together8,002 recipes
Shared aroma: coumarin (sweet, hay).
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Turnip + cabbagetop 2% of all pairsSmell alikestrongCooked together897 recipes
Shared aroma: coumarin (sweet, hay).
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Turnip + parsleytop 2% of all pairsSmell alikestrongCooked together2,842 recipes
Shared aroma: coumarin (sweet, hay).
-
Potato + oniontop 3% of all pairsSmell alikemoderateCooked together9,023 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
- Mutton
- Gives the broth its meaty flavor and richness as it simmers.
- Potatoes
- Their starch breaks down during simmering and gives the soup more body.
- Cabbage
- Softens during the long simmer, adding bulk and a mild sweetness.
- Onion
- Releases savory aromatics that deepen the flavor of the broth.
- Carrots
- Add natural sweetness and color to the broth.
- Turnips
- Add a mild, slightly sharp flavor and soft texture.
The step that matters
Simmer slowly for four hours, skimming the surface often. A gentle simmer keeps the mutton tender and the broth clear, while a hard boil makes it cloudy. Skimming removes foam and excess fat that would otherwise cloud or grease the soup.
Swap the cabbage
How well each one fits the dish's main ingredients (mutton, potato, carrot, turnip, onion, parsley):
- Leekfits better
- Parsnipfits better
- Chivefits better
- Cabbagethe original
Fit is the average pairing score against mutton, potato, carrot, turnip, onion, parsley. 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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