Watergate Cake Iii - cooking recipe

Ingredients

1 (18.25 ounce) package white cake mix
1 (3 ounce) package instant pistachio pudding mix
3 eggs
1 cup lemon-lime flavored carbonated beverage
3/4 cup vegetable oil
1/2 cup flaked coconut (optional)
1/2 cup chopped walnuts (optional)
1 (3 ounce) package instant pistachio pudding mix
1 cup milk
1 (8 ounce) container frozen whipped topping, thawed

Preparation

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.
Bake at 350 degrees F (175 degrees C) for 35 to 40 minutes. Cool.
Beat 1 box pudding and milk together. Fold in whipped topping. Frost cooled cake. Keep refrigerated.