Speedy Little Devils
["1 Duncan Hines Deluxe devil's food cake mix", "1 stick butter", "3/4 c. peanut butter", "1 (7 oz.) jar marshmallow cream"]
["Combine melted butter and dry cake mix.", "Reserve 1 1/2 cups of this for top crust.", "Pat the rest into ungreased 13 x 9 x 2-inch pan.", "Top with combined peanut butter and marshmallow cream and spread evenly.", "Crumble remaining mixture over that.", "Bake 20 minutes at 350\u00b0."]
["Deluxe", "butter", "peanut butter", "marshmallow cream"]