1. For the marinade, combine all ingredients except the lamb chops. In a large, shallow non aluminium baking dish or plastic bag, pour 1/2 cup marinade over lamb chops; turn to coat. Cover, or close bag, and marinate in refrigerator up to 2 hours. Refrigerate the remaining marinade.
2. Remove lamb chops from marinade, discarding marinade. Grill lamb chops, turning occasionally and brushing frequently with the refrigerated marinade, until desired doneness.