Preheat oven to 350°F.
In a medium bowl, add the flour, baking powder, baking soda, cinnamon and salt. Stir until combined.
In another medium bowl, whisk together apple cider, apple sauce, sugar, yogurt, oil and egg until combined.
Add wet mixture to flour mixture, and stir until just combined.
Spray two (6-cavity) donut pans with cooking spray. Spoon or pipe batter evenly into the 12 cavities.
Bake for 6-8 minutes, or until donuts spring back when lightly pressed. Cool in pan for 2 minutes. Invert donuts onto a wire rack.
While donuts are baking, mix together sugar and cinnamon in a shallow bowl.
Brush each donut with coconut oil on both sides and dip into the cinnamon sugar mixture to coat. Repeat until all donuts are coated.
Best enjoyed immediately but can be stored in an air-tight container for 2-3 days and reheated in the microwave or toaster oven.