Mix cake mix with eggs and oil and stir, stir in crushed graham crackers and chocolate chips,
Form into about 1 1/2 inch round balls and press 1 chocolate square on top of each cookie, Bake at 350 F for 10 minutes.
Place 2 half pieces of marshmallows on cookie and turn oven onto broil. Toast the tops of marshmallows for about 1 minute or until golden brown, Watch closely!