Watergate Cake

1 (18.25 ounce) box white cake mix
1 cup vegetable oil
1 cup 7-Up?
1 small box pistachio pudding
3 eggs
1/2 cup nuts
5 drops green food coloring

Mix all ingredients together and bake at 350 degrees F in a Bundt pan for approximately 45 minutes.

Frosting
3 drops green food coloring
1 small box pistachio pudding
1 (13 1/2 ounce) container frozen
    whipped topping, thawed

Mix all ingredients thoroughly and spread on cooled cake. For a festive look, dot with maraschino cherries.