Name: Roast Leg of Lamb
Ingredients: 1 leg of lamb; salt; pepper; ½ cup butter

Why it works: Lamb and pepper are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 3,165 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓

Roast Leg of Lamb

Ingredients

1 leg of lamb
salt
pepper
½ cup butter

Directions

The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.

Prepare

Preheat the oven to 350°F (175°C).
Season the leg of lamb with salt and pepper.

Roast

Place the lamb in a roasting bag.
Add the butter to the bag.
Seal the bag and roast for 45 minutes.

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.

Lamb + peppertop 12% of all pairs

Smell alikemoderate

Cooked together3,165 recipes

Shared aroma: 2-nonenal (fatty, green).
Lamb + buttertop 17% of all pairs

Smell alikemoderate

Cooked together2,232 recipes

Shared aroma: decanal (soap, orange peel).
Pepper + buttertop 21% of all pairs

Smell alikemoderate

Cooked together85,593 recipes

Shared aroma: trans-2-nonenal (cardboard, fatty).

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

What each ingredient does

Leg of lamb: Main protein; roasting firms its texture and browns its surface.
Butter: Adds fat that bastes the lamb, keeping it moist and adding richness.

“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.