Break your graham crackers in half to create squares. Place four of the squares into the air fryer basket in a single layer. Make sure they are not overlapping so the air can circulate properly.

Place one large marshmallow in the center of each graham cracker square. To prevent the marshmallows from blowing around, you can slightly press them down or use a tiny drop of honey or water on the bottom to “glue” them to the cracker.

Slide the basket into the air fryer. Cook at 390°F (200°C) for about 2 to 3 minutes. Keep a close eye on them through the window or check at the 2-minute mark; they turn golden-brown very quickly!

Carefully remove the basket. Immediately place a piece of chocolate on top of each hot marshmallow. Place the remaining graham cracker squares on top and press down gently to help the chocolate melt and the marshmallow spread.