Preheat oven to 350 degrees F
Coat donut pans with non-stick cooking spray
In a large bowl beat together the oil, eggs, sugar and pumpkin until smooth
In a medium bowl, whisk together flour, pumpkin pie spice, salt and baking powder
Gradually add the dry ingredients to the wet ingredients and beat just until smooth
Fill donut pan about ¾ full ** see notes
Bake for 15-20 minutes or until lightly browned
Cool on wire rack for 5 minutes
Remove from pan
If using glaze, let donuts cool completely, then dip into glaze