Spread butter or mayonnaise on one side of each piece of bread.
Lay a piece of bread, spread side down, in air fryer basket. Top with 2 slices of cheese and place another piece of bread, spread side up, on top of cheese.
Cook sandwiches at 370 degrees F for 4 minutes, flip the sandwiches over and cook at 370 degrees for another 4 minutes or until desired toast.
Serve warm.
