CAKE:

1/2 c. oil
4 eggs
1 c. water
Chocolate or yellow cake mix

FILLING:

1 c. milk
4 tbsp. flour
1/2 c. shortening
1/2 c. butter
1 c. sugar
1/4 tsp. salt
1 tsp. vanilla

Blend cake ingredients and bake at 350 degrees for 40 to 45 minutes in 9"x13" pan. (Greased and floured.) Cool. Turn onto plate and split with thread.

Beat milk and flour and cook on low until thick. Cool completely. Cream shortening and butter. Beat 5 minutes. Add sugar and salt. Beat 5 minutes more. Add filling and beat 10 minutes. Add vanilla. Spread between 2 layers of cake.