Preheat the oven to 180C/356F.
Grease a non stick donut pan with baking spray or coat lightly with olive oil and set aside.
In a small bowl combine the ground flaxseed with the warm water, whisk and set aside.
Meanwhile, add the sweet potato, almond milk, nut butter, oats, raw cane sugar, baking powder, sorghum flour, vanilla, nutmeg, cinnamon, ginger and pink salt in a blender.
Pulse into a smooth consistency.
Spoon or pour the batter into the donut pan, being careful not to overfill (you may need to repeat this step in batches).
Bake the donuts for 10-12 minutes or until lightly brown.
Once baked, remove from the oven and allow to cool down on a wire rack.
Lightly spritz both sides of the donut with apple juice.
Prepare the powdered sugar by placing it in a ziplock or a secure bag.
Working two at a time (only do this when you are about to eat them), drop the donuts into the bag, close it and shake gently to coat in the powdered sugar.
Remove the donuts and set aside and repeat the above step with the rest of the donuts.