Preheat electric skillet to medium heat (300ºF). Generously butter one side of a bread slice.
Place bread butter-side-down onto the bottom of the skillet and add 2 slices of cheese.
Butter a second bread slice on one side and place it butter-side-up on top of the cheese in the electric skillet.
Grill until lightly browned. Flip over and continue grilling until cheese is melted (a few more minutes).
Repeat with remaining ingredients to make another sandwich. Serve!
Notes
When making electric skillet grilled cheese sandwiches, don't be afraid of getting creative. Try substituting different styles of cheese or use more than one type, or use a different bread. You can even add some slices of tomato for a more adult version.
They are best served immediately but can be refrigerated for up to 3 days and then reheated in the skillet or microwave.