Start with high-quality bread and cheese for the best flavor.
Butter the bread generously to achieve a crispy, golden crust.
Use a mix of cheeses for a richer, more complex taste.
Grill on medium heat to melt the cheese evenly without burning the bread.
Experiment with add-ins like tomatoes or bacon for extra flavor.
Keep the sandwich covered to help the cheese melt thoroughly.
Let the sandwich rest briefly before cutting to maintain its shape.