Preheat the oven to 375?F.
Mix dry ingredients in a bowl and set aside.
In the bowl of a mixer with a paddle attachment, mix all of the wet ingredients together. Add the dry ingredients and mix together until just combined.
Lightly coat the donut pan with baking spray. Then put the batter into a pastry bag and snip a small opening on the bottom. Pipe the batter into the donut pan till they are a little over half full.
Bake the donuts for 15-20 minutes until they spring back when touched. Let them cool for 10 minutes and then transfer to a wire rack and cool completely before glazing. (Donuts can be stored for a couple days if stored in an airtight container.)