Watergate Cake III Be The First To Review By Anonymous recipe Comments | 0 Favorites | 4 Print I leave the coconut and nuts out, and it is still very good. I get rave reviews when I take it anywhere! Watergate Cake III Ingredients 1 (18.25 ounce) package white cake mix1 (3 ounce) package instant pistachio pudding mix3 eggs1 cup lemon-lime flavored carbonated beverage3/4 cup vegetable oil1/2 cup flaked coconut (optional)1/2 cup chopped walnuts (optional)1 (3 ounce) package instant pistachio pudding mix1 cup milk1 (8 ounce) container frozen whipped topping, thawed Instructions 1 Mix together cake mix, 1 box pudding mix, eggs, oil, and soda drink. Stir in coconut and nuts if desired. Pour into a greased 9 x 13 inch baking pan. 2 Bake at 350 degrees F (175 degrees C) for 35 to 40 minutes. Cool. 3 Beat 1 box pudding and milk together. Fold in whipped topping. Frost cooled cake. Keep refrigerated.