1/2 c. melted butter
3 eggs
2/3 c. milk
Yellow cake mix (set aside 1 c.)
1 (30 oz.) can pumpkin pie mix

TOPPING:

1 c. cake mix
1/4 c. butter
1 tsp. cinnamon

Mix 1/2 cup butter, 1 egg and cake mix. Press into 9x13 pan. Mix pumpkin pie mix, 2 eggs and milk. Pour over cake mixture. Combine topping ingredients and sprinkle on top. Bake at 375 degrees for 50 minutes. Dollop with whipped cream when served.