1 box white cake mix
1 (3 1/2 oz.) box pistachio instant pudding mix
1 c. nuts
1/2 c. coconut
1 c. Sprite
3 eggs
1 c. cooking oil

Mix all ingredients together at once. Bake at 350 degrees for 35 minutes.

ICING:

1 box pistachio instant pudding
1 c. sour cream
1 c. milk
1 c. powdered sugar
1 pkg. Dream Whip mix

Beat all ingredients together until stiff; top cake.