Start by selecting your favorite type of bread for the sandwich. Classic choices include white bread, sourdough, or whole wheat, but you can use any bread you prefer.
Choose a cheese or combination of cheeses that melt well and complement each other. Cheddar, American, Swiss, and mozzarella are popular options, but feel free to get creative with cheese blends like cheddar and Gouda or mozzarella and provolone.
Preheat a non-stick skillet or griddle over medium heat. You want the pan to be hot enough to melt the cheese and toast the bread without burning it.
Spread a thin layer of softened butter on one side of each slice of bread. This will help create a crispy, golden-brown crust when the sandwich is grilled.
Place the cheese slices between the buttered sides of the bread slices to form a sandwich. Press down gently to adhere the bread slices together.
Carefully place the assembled sandwich in the preheated skillet or griddle. Cook for 2-3 minutes on each side, or until the bread is golden brown and the cheese is melted and gooey.
For an extra-crispy exterior and evenly melted cheese, you can press down on the sandwich with a spatula while it cooks. This helps to flatten the sandwich and ensure even heat distribution.
Once the sandwich is grilled to perfection, remove it from the pan and let it cool for a minute or two before slicing. Serve hot and enjoy the delicious, cheesy goodness!