Almost Twinkie Cake

1 package white cake mix
1 small pack instant vanilla pudding
1/2 cup oil
3 eggs
1 cup milk
1/2 teaspoon salt
1/2 cup butter, softened
2 teaspoons vanilla
4 tablespoons flour
1 cup sugar
1/2 cup crisco
1 cup water

Combine cake mix, oil, eggs, pudding and water and 1 tsp vanilla. Beat at medium speed for 2 minutes. Pour into a greased and floured 9 x 13 pan.

Bake at 350�F for 40-45 minutes or until cake tests done.

In a saucepan mix the flour with the milk. Cook until thick, stirring constantly; cool. Add sugar, salt, crisco, margarine and 1 tsp vanilla. Beat until fluffy. Spread on the cooled cake. Store in refrigerator.