In a large bowl, combine bread crumbs, garlic, rosemary, 1 teaspoon salt and 1/4 teaspoon pepper. Toss in 2 tablespoons olive oil to moisten mixture. Set aside. Season the rack all over with salt and pepper. Heat 2 tablespoons olive oil in a large heavy oven proof skillet over high heat. Sear rack of lamb for 1 to 2 minutes on all sides. Set aside for a few minutes. Brush rack of lamb with the mustard. Roll in the bread crumb mixture until evenly coated.
For oven cooking, place the lamb in an uncovered roasting pan and cook at 165 degrees C (325 degrees F). For every 0.5 cm (inch) of thickness, allow 10 to 15 minutes of cooking time. You can allow more time for a well-done steak, cooking to an internal temperature of 76 degrees C (170 degrees F).
Rub the paste on both sides of the lamb chops and let them marinate for at least 1 hour in the refrigerator. Remove from refrigerator and allow the chops to come to room temperature; it will take about 20 minutes. Heat a grill pan over high heat until almost smoking, add the chops and sear for about 2 minutes.Flip the chops over and cook for another 3 minutes for medium-rare and 3 1/2 minutes for medium.Recipe courtesy of Giada De Laurentiis. View All.eat a grill pan over high heat until almost smoking, add the chops and sear for about 2 minutes. Flip the chops over and cook for another 3 minutes for medium-rare and 3 1/2 minutes for medium. Recipe courtesy of Giada De Laurentiis.