Pumpkin Spice Cake

I love pumpkin cake and my hubby who isnt a huge cake fan nor a pumpkin fan loves this recipe. I know fall is over but personally I dont think you can ever have enough pumpkin recipes!! Hope you all had a great fall and are ready for winter no matter where you are!

Mix:
Yellow cake mix - 1 cup reserved
1/2 cup melted butter
1 egg
Press into greased cake pan

In seperate bowl mix:
3 cups pumpkin
2 eggs
2/3 c. milk
2 1/2 tsp. pumpkin spice
1/2 c. brown sugar
Pour over cake mix

Add to reserved cake mix :
1/4 c sugar
1 tsp. cinnamon
1/4 c butter (cold)
1 tsp. vanilla

Sprinkle on top of pumpkin mix. Bake at 350 for 55-60 minutes. Serve with whip cream.