Ingredients
1 Duncan Hines Devils Food Cake Mix, Delux II
1 stick butter, melted
2/4 cup peanut butter
1 7-once or 7.5-ounce jar marshmallow creme
Method
Combine melted butter and dry cake mix, reserving 1/2 cup of this for topping.
Pat remaining into an ungreased 13x9x2-inch pan. Top that with combined peanut butter and marshmallow cream and spread evenly. Crumble remaining {cake} mixture over that. Bake 20 minutes at 350-degrees.
Cool, makes 3-dozen bars.