Grilled Butterflied Leg of Lamb with Lemon, Herbs, and Garlic

Ingredients

• 0.5 teaspoon pepper black freshly ground
• 1 tablespoon coarse salt 
• 2 tablespoons parsley leaves fresh chopped
• 2 tablespoons rosemary leaves fresh chopped
• 3 tablespoons thyme leaves fresh chopped
• 8  garlic cloves 
• 4 pounds a 7- to 8-pound leg of lamb boneless trimmed
• 1  optional: lemon 
• 3 tablespoons olive oil 

Equipment

• bowl
• oven
• knife
• roasting pan
• grill
• kitchen thermometer
• aluminum foil
• cutting board

Directions

1. Finely chop garlic and in a small bowl stir together with remaining herb-rub ingredients.
2. Put lamb in a large dish and with tip of a sharp small knife held at a 45-degree angle cut 1/2-inch-deep slits all over lamb, rubbing herb mixture into slits and all over lamb. Marinate lamb at room temperature 1 hour.
3. Prepare grill.
4. Lightly pat lamb dry. On a lightly oiled rack set 5 to 6 inches over glowing coals grill lamb about 10 minutes on each side, or until an instant-read thermometer horizontally inserted into thickest part of meat registers 125°F for medium-rare. (Alternatively, roast lamb in a roasting pan in middle of a 425°F oven about 25 minutes, or until an instant-read thermometer horizontally inserted into meat registers 125°F for medium-rare.)
5. Transfer lamb to a cutting board. Halve and seed lemon. Squeeze juice over lamb and let stand, loosely covered with foil, 15 minutes.
6. Cut lamb into slices and serve with any juices that have accumulated on cutting board.