Peel and slice the banana into thin slices.
Cut the chocolate into smaller pieces.
Then on a chopping board place 1 bread and layer it with the chocolate, banana and marshmallow and a little bit more chocolate.
Then cover the smores with another layer of bread so that it resembles a sandwich.
Using a mug, cut the smores while also sealing the edges.
Spread the butter or margarine on both sides of the smores.
Fry the smores in an air fryer set at 180c for 8 mins.