Why it works: Turnip and potato work together. They rank in the top 8% of all ingredient pairs, and cooks put them together in 562 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Gravy Soup
Ingredients
Directions
Boil the leg of lamb until tender.
Add turnips, peas, and potatoes to the pot.
Cook until all vegetables are tender.
Serve hot as a soup.
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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Turnip + potatotop 8% of all pairsSmell alikemoderateCooked together562 recipes
Shared aroma: coumarin (sweet, hay).
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Turnip + peastop 8% of all pairsSmell alikemoderateCooked together1,350 recipes
Shared aroma: coumarin (sweet, hay).
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Peas + potatotop 9% of all pairsSmell alikemoderateCooked together1,016 recipes
Shared aroma: 2-isobutyl-3-methoxypyrazine (green bell pepper, earthy).
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Lamb + potatotop 9% of all pairsSmell alikemoderateCooked together520 recipes
Shared aroma: 2-undecenal (sweet).
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Lamb + peastop 14% of all pairsSmell alikemoderateCooked together650 recipes
Shared aroma: 2,4-nonadienal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Leg of lamb
- Provides the main meat and rich flavor that gives the broth its body.
- Turnips
- Add mild sweetness and a firm texture that holds up during simmering.
- Peas
- Add sweetness and a soft, tender texture to the soup.
- Potatoes
- Soften during cooking, thickening the broth slightly and adding body.
The step that matters
Cook until all vegetables are tender. Root vegetables like turnips and potatoes need enough simmering time to soften fully. Adding them to a pot that is still too cool, or stopping early, leaves them firm and starchy, while overcooking peas turns them mushy.
Swap the peas
How well each one fits the dish's main ingredients (lamb, turnip, potato):
- Lentilsfits better
- Beansfits better
- Chickpeafits better
- Peasthe original
Fit is the average pairing score against lamb, turnip, potato. 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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