FIRST LAYER:

1 box yellow cake mix not with pudding
1 stick butter
1 egg

Reserve 1 cup of the mixture without egg. Press rest in bottom of a 9x13 pan.

SECOND LAYER:

1 lg. can pumpkin pie filling
2 eggs
2/3 c. evaporated milk

Mix together and pour over first layer.

TOP LAYER:

1 c. of reserved mixture
1/4 c. sugar
1 tsp. cinnamon

Mix and sprinkle on top of cake. Bake at 350 degrees for 50 minutes. Can frost Cool Whip over top.