Preheat oven to 400 degrees
In a large bowl, combine cake mix and canned pumpkin. Stir until well mixed.
Place batter into an icing or pastry bag and cut off the end so you have about a 1/2 inch opening.
Pipe batter into a greased Donut Pan.
Bake in the oven for 10-12 minutes.
Place donuts in a paper lunch bag filled with the powdered sugar and shake well until donuts are coated.