1 pkg. yellow cake mix
1 box Royal instant pistachio pudding
1/3 c. Wesson oil
4 eggs
1 c. club soda

Mix each ingredient together for 2 minutes. Bake at 350 degrees for 50 minutes.

TOPPING:

1 pkg. Dream Whip
1 c. milk
1 pkg. instant pistachio pudding

Put all ingredients in bowl and beat until peaky.