Name: To Boast a Leg of Mutton
Ingredients: 1 leg of mutton; coarse sea salt; black pepper; flour; boiling water

Why it works: Mutton and pepper are a kitchen classic. They rank in the top 16% of all ingredient pairs, and cooks put them together in 5,442 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓

To Boast a Leg of Mutton

Ingredients

Directions

Prepare

Hang the leg of mutton in a cool, airy place for several days.
Remove the kernel from the leg of mutton.
Dry the flap of the leg of mutton.
Dredge the mutton with black pepper.
Wipe the mutton dry.

Roast

Place the mutton on the spit.
Flour the mutton soon after placing it on the spit.
Roast the mutton at a distance from the fire for four hours.
Move the mutton closer to the fire for the last 20–30 minutes to brown.
Baste the mutton with its own fat regularly during roasting.
Sprinkle lightly with coarse sea salt.
Ladle a spoonful or two of boiling water over the mutton before serving.

Recipe from a historical cookbook (Internet Archive).

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.

Mutton + peppertop 16% of all pairs

Smell alikelow

Cooked together5,442 recipes

Shared aroma: trans-2-nonenal (cardboard, fatty).
Pepper + flourtop 19% of all pairs

Smell alikemoderate

Cooked together50,459 recipes

Shared aroma: isobutyraldehyde (malty, green).
Mutton + flourtop 29% of all pairs

Smell alikelow

Cooked together2,695 recipes

Shared aroma: hexanal (grass, green).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Leg of mutton: Provides the main meat, whose fat bastes the joint as it roasts.
Flour: Dusted on the surface, it helps form a crust that browns during roasting.
Black pepper: Dredged onto the meat, it adds sharp aroma to the crust.
Coarse sea salt: Sprinkled lightly over the cooked surface, it adds seasoning and crunch.

The step that matters

Move the mutton closer to the fire for the last 20–30 minutes to brown. Browning needs high surface heat, which is why the joint is roasted at a distance first to cook through gently. Moving it closer too early can scorch the flour crust before the centre is done, while leaving it too far away leaves the surface pale.

“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.