1 pkg. yellow cake mix
1 pg. instant banana pudding
4 eggs
1 1/2 c. milk

FILLING:

1/2 c. butter
1/2 c. shortening
1/2 c. milk
1 c. sugar
3 tbsp. flour
1 tsp. banana flavor

Mix and pour into 2 (9x12) cake pans or jelly roll pan. Grease pan and put wax paper then regrease. Bake at 350 degrees for 15 minutes.