Preheat your oven to 350° F. In a medium bowl, combine flour, oats, baking powder, salt, and cinnamon, set aside. In a separate bowl, combine eggs, mix, then add the sugar, 1 c applesauce, greek yogurt, coconut oil, and 1 t vanilla extract. Add the dry ingredients, and mix together until just combined. Place the batter into a piping bag or large Ziploc. Using a mini donut pan, grease the pan, snip the edge of the piping bag, and pipe the batter into the pan. Bake for 10 mins, until a toothpick inserted into the donut comes out clean. While the donuts are baking, combine powdered sugar, maple syrup and the remaining applesauce & vanilla extract. Whisk together. Remove the donuts from the pan, and let cool completely. Dip into the glaze, and cover with sprinkles, enjoy.