1 box Devils Food Cake Mix
1 stick melted butter
3/4 cup peanut butter
7 ounce jar marshmallow cream
Mix cake mix and butter.
Spread in 13 X 9 inch pan; save 1 1/2 cup for top.
Mix peanut butter and marshmallow cream.
Spread on top of crumbs.
Place rest of crumbs on top.
Bake 350 degrees for 20 minutes.
Servings: 12