Classic Roast Leg of Lamb

Leg of Lamb Roast
Diana Miller / Getty Images
Prep: 20 mins
Cook: 75 mins
Marinating Time: 6 hrs
Total: 7 hrs 35 mins
Servings: 6 to 8 servings
Nutrition Facts (per serving)
854 Calories
58g Fat
8g Carbs
71g Protein
Show Full Nutrition Label Hide Full Nutrition Label
Nutrition Facts
Servings: 6 to 8
Amount per serving
Calories 854
% Daily Value*
Total Fat 58g 74%
Saturated Fat 24g 121%
Cholesterol 266mg 89%
Sodium 259mg 11%
Total Carbohydrate 8g 3%
Dietary Fiber 2g 6%
Protein 71g
Calcium 118mg 9%
*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
(Nutrition information is calculated using an ingredient database and should be considered an estimate.)

Roast leg of lamb is one of the easiest "special occasion" recipes there is. The simple herb, lemon, and garlic marinade is all this great cut of lamb needs before it’s roasted to pink perfection.


  • 1 (5 to 6 pound) boneless leg of lamb (should come tied up, if not, have the butcher tie it for roasting)
  • 2 lemons (juiced)
  • 6 cloves garlic (crushed)
  • 1/4 cup fresh rosemary (chopped)
  • 1 teaspoon dried thyme
  • 1 teaspoon fresh ground black pepper
  • 2 tablespoons olive oil
  • Kosher salt (as needed)

Steps to Make It

  1. Combine all the ingredients, except for the olive oil and salt, in a large bowl.

  2. Rub the leg of lamb thoroughly with the marinade until coated. You may even push some herbs and garlic into any cracks and crevices.

  3. Place the lamb in a plastic bag, and marinade in the refrigerator overnight, or for at least 6 hours.

  4. Remove the lamb from the fridge, and let sit out for 45 minutes to come up to room temperature.

  5. Remove the lamb from the marinade and place on a rack in a large roasting pan. Rub with the olive oil, and season very generously with the salt. Keep the side with the most fat facing up.

  6. Preheat oven to 450 F.

  7. Roast for 15 minutes in the hot oven to begin browning the surface.

  8. Then reduce the oven to 315 F. and roast for approximately 10 minutes per pound (for a 5 to 6 pound leg this will be about an hour).

  9. The best method for checking the doneness is using a digital meat thermometer and removing the lamb when the internal temp reaches 135 F. This will give you a nice pink and juicy roast. Let the lamb rest for at least 20 minutes before slicing. It's best sliced thin, against the grain of the meat.


  • While the meat is resting, you can pour off the fat from the roasting pan, place it over a medium flame, and deglaze the browned bits on the bottom with a cup of water, or stock. Simply scrape the bottom of the pan with a spatula while the liquid simmers, until all the caramelized juices have dissolved. Pour this over the sliced lamb when served.

Recipe Tags: