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Roast Leg of Lamb

Roast leg of lamb baked with butter, pepper, salt, and flour, served with mint sauce and green peas or asparagus.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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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

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

  1. Preheat your oven to 350°F (175°C).

  2. Place the leg of lamb in a covered roaster.

  3. Pour ½ cup of boiling water over the lamb and cover it.

Roast

  1. Cook for about 15 minutes per pound.

  2. Twenty minutes before it’s done, remove the cover.

  3. Rub the lamb all over with butter, then dredge with pepper, salt, and flour.

  4. Brown the lamb in the oven until golden.

Serve

  1. Serve with mint sauce and your choice of green peas or asparagus.

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.

  1. Lamb + peppertop 12% of all pairs
    Smell alikemoderate
    Cooked together3,165 recipes

    Shared aroma: 2-nonenal (fatty, green).

  2. Butter + flourtop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  3. Lamb + buttertop 17% of all pairs
    Smell alikemoderate
    Cooked together2,232 recipes

    Shared aroma: decanal (soap, orange peel).

  4. Pepper + flourtop 19% of all pairs
    Smell alikemoderate
    Cooked together50,459 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. Lamb + flourtop 21% of all pairs
    Smell alikemoderate
    Cooked together1,402 recipes

    Shared aroma: acetaldehyde (pungent, ethereal).

Butter and flour 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

Leg of lamb
Is the main meat, and its long slow roasting makes it tender and juicy.
Butter
Adds fat that helps the surface brown and gives a rich flavor.
Flour
Dusted on the surface, it helps form a crust that browns and crisps.

The step that matters

Remove the cover twenty minutes before done. Uncovering lets moisture escape and the surface dry and brown. Removing it too early can dry the meat, while leaving it on too long prevents the golden crust from forming.

“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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