BOTTOM LAYER:

1 pkg. yellow cake mix (save 1 c. out for topping)
1/2 c. melted butter
1 egg

Mix well and press in 9x13 inch pan.

FILLING:

1 lg. can Libby's pumpkin pie mix
2 eggs
2/3 c. milk

blend well and pour over crust.

TOPPING:

1 c. reserved cake mix
1/4 c. sugar
1 tsp. cinnamon
1/4 c. cold water

Mix together and sprinkle over batter. Bake at 350 degrees for 45 minutes or until set well. Cool in pan. Cut in squares. Serve with Cool Whip.