Making a delicious Grilled Mozzarella Sandwich is straightforward. Follow these simple steps to enjoy your creation:

1. Prepare the Ingredients: Gather all your ingredients and equipment. Have your bread and cheese slices ready.
2. Butter the Bread: Spread a thin layer of unsalted butter on one side of each bread slice. Ensure even coverage for optimal crispiness.
3. Assemble the Sandwich: Place one slice of bread, buttered side down, in a skillet or frying pan set to medium heat. Layer the mozzarella slices on top.
4. Add Toppings: If using, add fresh basil leaves and tomato slices on top of the mozzarella. Sprinkle with salt and pepper for added flavor.
5. Top it Off: Place the second slice of bread on top, buttered side facing up.
6. Cook the Sandwich: Grill the sandwich for about 4-5 minutes until golden brown. Carefully flip the sandwich using a spatula.
7. Grill the Other Side: Cook for an additional 4-5 minutes on the other side until the mozzarella is melted and the bread is crispy and golden.
8. Check for Melting: You want to ensure the cheese is gooey and has melted completely.
9. Slice and Serve: Once cooked, remove the sandwich from the skillet. Let it cool for a minute, then slice it in half for serving.