Gooey Butter Coffee Cake
["1 box yellow or white cake mix", "1 stick butter, melted", "2 Tbsp. vanilla", "1/4 c. nuts (optional)", "4 eggs", "8 oz. cream cheese", "1 box powdered sugar"]
["Blend cake mix, 2 eggs and butter.", "Place in a large ungreased 13 x 9-inch pan.", "Mix cheese, vanilla, 2 eggs and powdered sugar (save 2 tablespoons). Pour mixture on top of the first layer. Bake at 325\u00b0 for 15 minutes.", "Then sprinkle nuts and remaining powdered sugar.", "Bake an additional 25 minutes."]
["butter", "vanilla", "nuts", "eggs", "cream cheese", "powdered sugar"]