Preheat oven to 450°F.

Microwave the whole stick of butter in a bowl until the butter melts and becomes a liquid.

Butter one side of half of your bread and place butter-side down on a baking sheet. Arrange Cheese on each slice of bread. Spread Butter on other half of bread and place them buttered-side up on top of the cheese.

Bake in preheated oven for 6 to 8 minutes. Flip the sandwiches, and bake an additional 6 to 8 minutes, or until golden brown.

Tip: For buttering the bread i would recommend using a pastry brush. If you don't have that then a regular spoon will be fine. Just make sure you don't over butter it or your bread will be soggy and it may take longer to become crispy when you bake it.