Preheat oven to 350. Place cupcake liners into muffin pans.

Make the cake batter as instructed by the box

Mix 1 cup Graham cracker crumbs, melted butter, sugar and salt in a small bowl.

Place 1 heaping tbsp of graham cracker mix in the bottom of each cupcake liner. Use a small glass to flatten and pack the crumbs.

Bake for 5-7 mins then let cool 10 mins.

Scoop cake batter into liners over crumbs to no more than 2/3 full in each liner. I am normally able to make approximately 22 cupcakes with one box of mix.

Bake for 18-22 mins until toothpick comes out clean.

Scoop a marshmallow sized hole out of each cupcake. I use an apple corer. Place each marshmallow into a cupcake hole. I usually squeeze an end of the marshmallow to help them fit.

Set oven broiler to low. Return cupcakes to the oven about 6" below the broiler. Keep a close eye in the marshmallows. They will burn quick, so you don't want them in there more than a minute. Remove from oven. Use a knife to cut a small slit in each marshmallow. Using the knife blade as an edge and to help you keep the hole open, insert the Hershey's chocolate piece. Top with graham cracker crumble.