# Method:
01 - Preheat the air fryer to 350°F (180°C) for 3 minutes.
02 - Spread butter evenly on one side of each bread slice.
03 - Place two slices of bread, buttered side down, on a clean surface and top each with two slices of cheese. Cover with remaining bread slices, buttered side up, to form sandwiches.
04 - Place the sandwiches in the air fryer basket without overlapping.
05 - Air fry the sandwiches for 4 minutes.
06 - Carefully flip each sandwich and air fry for an additional 3 to 4 minutes until golden brown and crisp.
07 - Remove sandwiches from the air fryer, allow to cool slightly, slice, and serve immediately for optimal crispness.