Place the leg of lamb in a shallow baking pan. In a bowl, combine the olive oil, rosemary, lemon, thyme, and red pepper flakes.

Pour the oil mixture over the lamb, turning the meat from side to side until well coated. Cover and marinate for 2 hours, 1 hour in the refrigerator and 1 hour at room temperature.

Prepare the charcoal grill. Preheat the oven to 250°. When the coals reach a dusty red glow, add a small bundle of grapevine clippings.

Brush the grill with olive oil. Season the meat with salt. Place the meat on the grill and cook for 5 minutes on each side. Transfer the meat to a baking pan and place in the oven for 10 minutes.

Allow the lamb to rest for 10 minutes before slicing.

Serve rare.

To assemble: Very thinly slice the meat allowing about 3 slices per person. Sprinkle with a little of the minced garlic, orange zest, and basil.