Human: How to make a perfect grilled cheese sandwich? Assistant: 
To make a perfect grilled cheese sandwich, start by buttering both sides of two slices of bread. Place one slice butter-side down in a skillet over medium heat and let it cook until golden brown. Flip the other slice onto the first one and place another tablespoon of butter on top of the second slice. Cook for an additional 2 minutes or until golden brown. Flip the sandwich again and place the remaining butter on the outside edges. Let it cook for 1 minute more before flipping it once more. Finally, remove from heat and enjoy your perfectly cooked grilled cheese sandwich!