Preheat oven to 350 degrees F. Lightly oil your donut pan with avocado oil.
In a mixing bowl, add flax and coconut milk and leave for 5 minutes.
Put rolled oats in food processor or blender and grind into flour.
In another bowl, add the oat flour, cacao, baking powder and soda, coconut sugar and cinnamon and mix together.
Add the apple cider vinegar, oil, apple sauce, and vanilla to the coconut/flax mixture and combine. Pour this liquid into the dry ingredients and scrape bowl and mix well.
Add batter evenly into your donut pan. Sprinkle with chocolate chips.
Bake for 14-18 minutes. Check with cake tester to check for doneness.
Let cool for at least 10 minutes. Remove from pans using a spatula if necessary.
