Ingredients

  • 1 9-to-11-pound bone-in leg of lamb, trimmed of fat and membrane
  • 1 teaspoon kosher salt
  • 1 teaspoon freshly ground black pepper
  • 13 cup fruity-tasting olive oil
  • 13 cup lemon juice
  • 1 tablespoon lemon zest
  • 2 tablespoons minced garlic
  • 1 tablespoon harissa (Moroccan chili paste), more for serving
  • 1 teaspoon whole coriander seeds, toasted and crushed
  • 1/2 teaspoon ground cumin
  • Mint dressing

Method

  • Score meaty side of lamb in a diamond pattern of 1/4-inch-deep cuts about 1 1/2 inches apart.
  • Season with salt and pepper, and place scored-side up in a large roasting pan.
  • In a small bowl, whisk olive oil with lemon juice, lemon zest, garlic, harissa, coriander seeds and cumin.
  • Pour marinade over lamb and massage into crevices.
  • Cover pan with aluminum foil and refrigerate 2 1/2 hours or overnight.
  • Remove from refrigerator 1 1/2 hours before cooking to return lamb to room temperature; in last 15 minutes, heat oven to 450 degrees.
  • Remove foil from pan and place pan on middle oven rack; turn heat down to 350 degrees.
  • Roast, basting lamb with pan juices every 1/2 hour, until a meat thermometer inserted into thickest part of meat reads 130 degrees, about 1 3/4 hours total.
  • Remove from oven, tent loosely with foil, and let rest 15 minutes before carving.
  • Serve with harissa and mint dressing.