Pumpkin Surprise Cake

1 Box yellow cake mix: reserve 1 cup and set aside 

CRUST: MIX TOGETHER

Remaining cake mix

1/2 cup butter

1 egg

mix well, press into a 9x13 pan

BATTER: MIX TOGETHER

30 oz. can pumpkin

3 beaten eggs

1 tsp. cinnamon

2/3 cup evaporated milk

3/4 cup sugar

Pour batter on top of crust

TOPPING:  MIX TOGETHER

1 cup remaining cake mix

1/4 cup sugar

1 tsp. cinnamon

2 Tbs. melted butter

1/2 cup chopped nuts (optional)

Crumble mix on top of batter.  Bake 425 for 15 minutes.  Reduce heat to 350 for 30 minutes. Let cool and serve with whipped cream.