01 -  Arrange graham crackers, chocolate squares, and marshmallows for assembly. 
 02 -  Toast the marshmallows over an open fire or using a skewer until golden and melty. 
 03 -  Place a toasted marshmallow and a chocolate square between two graham crackers. Press gently to combine. 
 04 -  Enjoy the warm, gooey treat while it's fresh.