Amy's Lemon Cake

1 box yellow cake mix
1 small vanilla instant pudding
4 eggs
1 c. sour cream
2 tsp. vanilla
3/4 c. oil

Mix and bake 325* for 40 - 45 minutes. cool and add glaze
Glaze: 16 oz. powdered sugar, 2 tsp. vanilla, add enough warm water until desired consistancy.
or you can add a lemon sauce: 1c. sour cream, 1 tsp. lemon peel, 1 tsp. lemon juice, 1/2 c. powdered sugar.