👩🍳 Instructions
1
Preheat the air fryer to 375°F (190°C) for 3 minutes.
2
Shred the cheese and spread butter evenly on one side of each bread slice. Spread Dijon mustard on the unbuttered side if using.
3
Assemble sandwiches with cheese between the unbuttered sides so the buttered sides face outward. Press gently to compact the sandwich slightly.
4
Place sandwiches in a single layer in the air fryer basket. Air fry for 4 minutes, then flip and air fry for another 2–3 minutes until the crust is golden and cheese is melted.
5
Let the sandwiches rest for 1 minute, then slice with a serrated knife and serve immediately.