Serves: Makes 8 servings
- 12 large cloves garlic
- 3 tablespoons chopped fresh rosemary, or 1 tablespoon dried
- 1 tablespoon coarse salt
- ½ teaspoon freshly ground black pepper
- 1 (4- to 6-pound) leg of lamb, boned and butterflied
- 2 large lemons
- 3 or 4 sprigs rosemary, for garnish
In a large, heavy mortar, combine the garlic, rosemary, salt, and pepper. Pound the garlic to a paste, stirring it with the other ingredients until combined. Alternatively, grate or press the garlic onto a plate and use a fork to mash the other ingredients into the garlic until blended.
Place the lamb on a rimmed sheet pan or in a large baking dish. With your fingertips, rub half of the garlic paste on the surface of the lamb, spreading it evenly into all of the crevices. Turn the lamb over and repeat on the other side.
Thinly slice and seed 1 lemon and spread the slices on the lamb. Halve the remaining lemon and squeeze the juice over the surface of the lamb. Cover the pan with plastic wrap and refrigerate for at least 2 hours or as long as overnight. Remove the lamb from the refrigerator 1 hour before grilling or broiling.
Heat a charcoal or gas grill to medium. Scrape the lemon slices off the lamb and reserve. Grill the lamb for 10 to 12 minutes per side for the thickest piece and for 8 minutes per side for the thinner pieces, or until an instant-read thermometer registers 140°F for medium-rare. Toward the end of the grilling time, arrange the lemon slices on the grill and heat just until golden. Reserve the lemon slices for garnishing the lamb.
Alternatively, the lamb can be broiled: Position an oven rack in the top of the oven so that the top of the broiler pan will be about 5 inches from the heat source, and preheat the broiler. Place the lamb on a broiler pan and broil using the same time and internal temperature guidelines used for grilling. Toward the end of the broiling time, place the lemon slices on the surface of the lamb and broil just until golden. Reserve the lemon for garnishing the lamb.
Transfer the meat to a wooden board and let rest for 5 to 10 minutes. Carve the meat across the grain into thin slices. Arrange the slices on a warmed serving platter in neat overlapping rows. Pour the meat juices and the seasonings that have accumulated on the board into a small saucepan, reheat briefly, and pour over the meat slices. Garnish with rosemary sprigs and the grilled or broiled lemon slices and serve at once.