Gooey Butter Cake
["1 pkg. yellow cake mix", "1 stick margarine, melted", "1 egg", "1 box powdered sugar", "1 (8 oz.) pkg. softened cream cheese", "2 eggs", "1 c. chocolate chips (if desired)", "1 c. nuts (if desired)"]
["Mix yellow cake mix, margarine and 1 egg together.", "Press in 13 x 9 x 2-inch pan.", "Mix powdered sugar, cream cheese, 2 eggs, chocolate chips and nuts; pour over crust.", "Bake at 350\u00b0 for only 30 minutes."]
["yellow cake mix", "margarine", "egg", "powdered sugar", "cream cheese", "eggs", "chocolate chips", "nuts"]