Steps
1. Heat a skillet over medium heat.
2. Butter one side of each slice of bread.
3. Place one slice, butter-side down, in the skillet.
4. Layer the cheddar and mozzarella cheese on top.
5. Top with the second slice of bread, butter-side up.
6. Cook for about 3-4 minutes until golden brown, then flip and cook for another 3-4 minutes.
7. Remove from the skillet and sprinkle sugar on top while still warm.
8. Serve with a cold can of Sprite for a refreshing drink.