Classic Grilled Cheese Sandwich

1. Heat a skillet over medium heat.
2. Butter one side of two slices of bread.
3. Place one slice of bread, buttered side down, in the skillet.
4. Top the bread with two slices of cheese.
5. Place the second slice of bread on top, buttered side up.
6. Cook until the bread is golden brown and the cheese is melted, about 2-3 minutes per side.
7. Remove from skillet, slice in half, and serve warm.