Why it works: Turnip and chestnut share more aroma than cooks usually use. They rank in the top 1% of all ingredient pairs, and cooks put them together in 46 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
To Roast Mutton
Ingredients
Directions
The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare the mutton
Trim off any inedible parts of the mutton and wash the meat well.
Remove the skin from the mutton.
Skewer the skin back on the mutton, or tie paper over the fat soaked in water to prevent burning.
Roast
Preheat the oven to 400°F (200°C).
Place a little salt and water in the dripping pan to baste the meat initially.
Use the meat's own gravy to baste the mutton.
Roast the leg of mutton for 2 to 2.5 hours, depending on its size.
A quarter hour before it is done, remove the skin or paper.
Dredge the mutton lightly with flour.
Baste the mutton with butter.
Skim the gravy.
Serve
Serve the gravy in a boat.
Serve the mutton with currant jelly 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.
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Turnip + chestnuttop 1% of all pairsSmell alikestrongCooked together46 recipes
Shared aroma: coumarin (sweet, hay).
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Flour + chestnuttop 6% of all pairsSmell alikestrongCooked together517 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + turniptop 7% of all pairsSmell alikestrongCooked together2,874 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Butter + oystertop 12% of all pairsSmell alikemoderateCooked together8,184 recipes
Shared aroma: 2,6-nonadienal (cucumber, green).
Flour and butter barely smell alike, yet cooks put them together in 124,287 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
- Mutton leg
- Lean meat that becomes tender and juicy when roasted slowly with its fat intact.
- Flour
- Dusted on the surface, it helps form a light crust and aids browning.
- Butter
- Basting fat that adds richness and promotes golden browning on the surface.
- Currant jelly
- Adds sweetness and acidity that balances the rich, savoury roasted meat.
The step that matters
Removing the skin or paper a quarter hour before the end. Taking off the protective skin or paper late lets the surface brown and crisp; leaving it on too long keeps the fat from browning and can slow crust formation.
Swap the chestnut
The recipe marks chestnut as optional. How well each one fits the dish's main ingredients (mutton, flour, butter, currant, turnip, oyster, meat):
- Almondfits about as well
- Chestnutthe original
- Beansfits about as well
- Peasfits about as well
Fit is the average pairing score against mutton, flour, butter, currant, turnip, oyster, meat. 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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