1 box deep chocolate cake mix
4 eggs
1/4 c. oil
1 sm. box instant chocolate pudding
3/4 c. evaporated milk
3/4 c. water

FILLING:

1 stick butter
1/2 c. shortening
2 c. powdered sugar
4 tbsp. flour
1 tsp. vanilla
1/3 c. milk

Mix above cake ingredients, then pour evenly into 2 greased cookie pans. Bake at 350 degrees for 15 minutes.

While cooling, make filling. Blend all ingredients, then whip at high speed for 5 minutes until thick and creamy. Spread filling on one gob sheet, then invert other sheet on one top. Cut into squares.