In a medium bowl, mix brown sugar, ginger, tarragon, cinnamon, pepper, garlic powder, and salt. Rub lamb chops with the seasonings, and place on a plate. Cover, and refrigerate for 1 hour.
Preheat grill for high heat.
Brush grill grate lightly with oil, and arrange lamb chops on grill. Cook 5 minutes on each side, or to desired doneness.
