1 pkg. yellow cake mix (reserve 1 c.)
1/2 c. melted butter
1 egg

FILLING:

1 (16 oz.) can pumpkin
2 1/2 tsp. pumpkin pie spice
1/2 c. firmly packed brown sugar
2 eggs
2/3 c. milk

TOPPING:

1 c. cake mix (reserved)
1/4 c. sugar
1 tsp. cinnamon
1/4 c. soft butter

Grease 9 x 13 inch pan on bottom. Combine all but 1 cup cake mix, butter, and egg; press into pan.

Prepare filling by combing all ingredients until smooth. Pour over crust.

For topping, combine all ingredients. Sprinkle over filling. Bake at 350 degrees for 45-50 minutes. Cool and chill.

Mix topping with a pastry blender.