Speedy Little Devils
["1 box devil food cake mix", "1 stick butter", "1 jar Marshmallow Creme", "3/4 c. peanut butter"]
["Mix melted butter with dry cake mix; set aside 1 1/2 cups. Press rest into 9 x 13-inch pan.", "Spread mixed Marshmallow Creme and peanut butter on top.", "Crumble rest of cake mix on top.", "Bake at 350\u00b0 for 20 minutes.", "Let cool and cut."]
["cake mix", "butter", "Marshmallow Creme", "peanut butter"]