Break each graham cracker in half and place four of the pieces in the basket of the air fryer. (You don't want the graham crackers to touch so if you only have room for two pieces at a time, you can do two at a time.)
Cut each marshmallow in half and place the sticky side on top of the graham cracker.
Press the marshmallows in place to keep them from moving off the crackers in the air fryer.
Place the graham crackers in the air fryer basket and cook for 2-3 minutes.
When the marshmallows begin to brown, remove the basket and put one half of a chocolate bar on top of the marshmallow.
Return the basket to the air fryer and cook for 1-2 minutes or until the chocolate begins to melt. Keep a close eye on the smores to make sure they don't start to burn.
Top each of the smores with the remaining graham crackers and serve!