Moist & Yummy Cake Mix

CAKE BATTER: - Pre-heat oven to 350. - Make vanilla pudding per box instructions and set aside. - In bowl, combine cake box mix, eggs, yolk, milk, butter and cream cheese (optional), mixing ingredients in one at a time until blended. Add vanilla pudding last. It's ok if there are some lumps in the batter. Set aside. - Use 1 tsp. butter per mold to prepare two 9" cake pans. Make sure to spread all the way around, including sides. A trick for even, easy distribution: use a clean sheet of paper towel to spread butter around. - Fill each pan halfway with cake batter. - Bake 40m. Remove when slightly golden or toothpick in center comes out clean. HOW TO REMOVE CAKE FROM PAN: - Cool in pan approximately 20m. - Run butter knife around entire edge (to separate the cake from the pan). - Cover pan with a plate and flip both items at the same time. - Cake should be cool to touch before icing. THICK & CREAMY FROSTING: - In large bowl, beat butter and cream cheese until well blended. - Gradually add confectioners' sugar and milk, mixing until well blended.