Pumpkin Pie Cake
["1 box yellow cake mix", "1 egg", "1/2 c. butter"]
["Remove 1 cup of dry cake mix and set aside for topping.", "Add egg and melted butter to the rest of the cake mix and mix well. Spread in well-greased 9 x 13-inch pan.", "Set aside."]
["yellow cake mix", "egg", "butter"]