Puree bananas until smooth. Transfer to a bowl. Stir in 2 tbsp coconut oil and arrow root powder. If needed, add in the coconut sugar to sweeten. *You can also puree in blender with 3 tbsp arrow root powder, blend, and then add in last tbsp or arrow root.
Pour into greased donut pans.
Bake for 15 minutes. Allow to cool for 10 minutes. Switch to a wire rack to finish cooling.
While you cool, whip up your frosting. Add the protein powder, 1 tbsp coconut oil, maple syrup, and water (as needed). Spread over your donuts and sprinkle with chocolate chips.
Store in your refrigerator to firm up the donuts and frosting before eating.
Recipe by The House of Healthy at https://thehouseofhealthy.com/2014/11/08/healthy-donuts/