Classic Grilled Cheese Sandwich

Instructions

1. Prepare the bread
   Lay out the bread slices on a clean work surface. Spread the outside of each slice with softened butter, making sure to cover the entire surface evenly.
2. Season the butter (optional)
   If using, mix the garlic powder, onion powder, and a pinch of salt into the remaining softened butter before spreading on the bread for extra flavor.
3. Assemble the sandwiches
   With the buttered sides facing outward, place an even amount of the grated cheddar and American cheese between two slices of bread. If using mayonnaise, spread a thin layer on the inside of each slice before adding cheese for extra richness and crispiness.
4. Heat the pan
   Place a non-stick skillet or griddle over medium-low heat. Allow it to heat up for about 2 minutes until evenly warm but not smoking.
5. Cook the sandwiches
   Place the assembled sandwiches in the pan. Cook for 3-4 minutes on the first side, until golden brown. Press down gently with a spatula occasionally to ensure even cooking.
6. Flip and finish cooking
   Carefully flip the sandwiches using a spatula. Cook for another 2-3 minutes on the second side until golden brown and the cheese is completely melted and gooey.
7. Rest and serve
   Remove the sandwiches from the pan and let them rest for 1 minute on a cutting board. This helps the cheese set slightly. Cut diagonally and serve immediately while hot and melty.