Why it works: Onion and turnip match in chemistry and in kitchens. They rank in the top 5% of all ingredient pairs, and cooks put them together in 7,585 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Leg of Mutton Boiled
Ingredients
Directions
Prepare
Trim the leg of mutton as for roasting and soak it in cold water for 2 hours.
Boil
Place the mutton in a pot and cover it with water.
Add salt and the onion to the water, then bring to a gentle boil.
Cook for 3 hours or until tender, depending on the weight.
When nearly ready, remove from heat and let it sit covered in the water for 10-15 minutes.
Serve
Serve with caper sauce and mashed turnips.
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.
-
Onion + turniptop 5% of all pairsSmell alikestrongCooked together7,585 recipes
Shared aroma: coumarin (sweet, hay).
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Mutton + oniontop 18% of all pairsSmell alikelowCooked together4,531 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Onion + saucetop 19% of all pairsSmell alikelowCooked together10,474 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Mutton + turniptop 19% of all pairsSmell alikelowCooked together1,558 recipes
Shared aroma: octanal (fat, soap).
-
Sauce + turniptop 20% of all pairsSmell alikemoderateCooked together943 recipes
Shared aroma: ethanol (alcoholic, ethereal).
Onion and sauce barely smell alike, yet cooks put them together in 10,474 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Leg of mutton
- Is the main cut of meat; long gentle cooking breaks down its connective tissue until tender.
- Onion
- Adds a mild, savoury aroma to the cooking water that flavours the meat.
- Salt
- Seasons the cooking water so the meat is seasoned through as it cooks.
The step that matters
Bring to a gentle boil, not a rolling boil. A rolling boil toughens and dries the outer meat and churns the fibres apart. A gentle simmer lets collagen soften slowly, keeping the meat tender and juicy.
Swap the turnip
How well each one fits the dish's main ingredients (mutton, onion, sauce):
- Shallotfits about as well
- Tomatofits about as well
- Turnipthe original
- Leekfits about as well
Fit is the average pairing score against mutton, onion, sauce. 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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