Grease Bundt pan with butter or margarine. Sprinkle bottom of Bundt pan with some grated Cheddar cheese. Rub 8 frozen bread dough buns with butter and place in Bundt pan. Sprinkle with garlic powder, onion powder, and grated Cheddar cheese. Repeat with remaining 8 frozen bread dough buns. Cover with damp tea towel. Let stand on counter for 6-8 hours or overnight. Bake in 350�F oven for about 30 minutes. Let stand 5 minutes. Turn out onto plate.