Prepare grill either by igniting coals and allowing them to die down to medium-hot, or by preheating a gas grill to medium-high. For medium chops, cook 6 to 7 minutes per side (or until firm and resilient to touch); for rare, cook about 5 minutes per side (or until meat is barely firm—but not springy—to touch). Alternatively, preheat oven to 400° and roast chops 10 to 15 minutes, depending upon how well done you like them, turning once.
Slice into one chop to test doneness; remove from grill while slightly pinker than desired (chops will continue to cook as they rest). Transfer to a platter. Serve with minty gremolata sauce on side.