01 -
Set the air fryer temperature to 190°C and allow it to preheat.
02 -
Combine ground beef with salt and black pepper in a bowl; shape into four patties slightly larger than the buns.
03 -
Place patties in the air fryer basket in a single layer and cook for 10 to 12 minutes, flipping halfway through, until an internal temperature of 70°C is reached.
04 -
Add cheese slices onto patties during the last 2 minutes of cooking to allow melting.
05 -
Toast burger buns if desired, then assemble burgers with patties and preferred optional toppings such as lettuce, tomatoes, and onions.