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 a mini 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.