18 slices bread
9 slices Cheddar cheese
4 tablespoons butter
1.Preheat oven to 450 degrees F (230 degrees C).
2.Butter one side of 9 pieces of bread, and place butter-side-down on a non-stick cookie sheet. Arrange cheese on each piece of bread. Spread butter on 9 remaining slices of bread, and place them buttered-side-up on top of the cheese.
3.Bake in preheated oven for 6 to 8 minutes. Flip the sandwiches, and bake an additional 6 to 8 minutes, or until golden brown.