01 - Line the air fryer basket with parchment paper or a perforated air fryer liner to prevent sticking.
02 - Place 4 graham cracker squares in the basket, spacing them evenly for airflow.
03 - Top each graham cracker with a milk chocolate square and a large marshmallow.
04 - Set the air fryer to 370°F and cook for 2 to 3 minutes until marshmallows are puffed and golden brown.
05 - Carefully lift the graham crackers out using tongs or a spatula, as the marshmallows will be hot and sticky.
06 - Cover each with a second graham cracker square, gently pressing to create a sandwich.
07 - Allow to cool for 1 to 2 minutes before serving for optimal texture.