Preheat oven to 350 degrees F.

In a large bowl, stir together the flours, baking powder, baking soda, cinnamon and salt while in a separate bowl whisk together the eggs, mashed bananas, applesauce, maple syrup, and vanilla.  Add the wet ingredients to the dry ingredients and mix until just combined (you don’t want to over mix the batter).

To make these donuts you’ll need two 6-count donut pans like these.  Spray them really good with nonstick spray so that your donuts will pop right out!  Then, using a pastry bag or ziplock bag, spoon the donut batter into the bag and snip off the corner.  Pipe the batter into each donut well until they are all filled.

Bake the donuts into the oven at 350 degrees F for about 11 to 13 minutes, until golden and a toothpick inserted comes out clean (mine came out perfect at 11 minutes).  You want to be careful about over-baking them because donuts actually bake really quickly!  Transfer the donuts to a wire cooling rack so they can cool.

To make the optional glazed icing: This is completely optional as these baked donuts honestly taste amazing plain right out of the oven, but you could also add a glazed icing on top.  Once the donuts have cooled completely to room temperature, mix together the confectioners' style erythritol (or you could use powdered sugar), milk and vanilla, mixing until smooth.  Dip the tops of the donuts into the glaze and let the glaze harden a bit before serving.