Pumpkin Pie Cake - cooking recipe

Ingredients

1 cake mix (reserve 1 c.)
1/2 c. butter
1 egg
3 c. pumpkin
4 eggs
1 1/4 c. brown sugar
1 tsp. cinnamon

Preparation

Mix cake mix, butter and 1 egg together.
Put in the bottom of a pan (mixture will be sticky).
In blender, mix pumpkin, 4 eggs, brown sugar and cinnamon.