Watergate Cake
["1 box white cake mix", "1 box pistachio pudding mix", "3 eggs", "1 c. oil", "1 c. club soda", "1 c. nuts (if desired)"]
["Mix first 5 ingredients for 2 minutes with electric mixer. Fold in nuts.", "Bake in greased tube pan 50 to 55 minutes at 350\u00b0. Cool before serving."]
["white cake mix", "pistachio pudding", "eggs", "oil", "club soda", "nuts"]