Preheat oven to 375°F and grease a donut pan with non-stick spray.
In a medium bowl, combine gluten-free flour blend, sugar, baking powder, salt, cinnamon, nutmeg, ground flax, and apple pie spice.
In another bowl, whisk together room temperature apple cider, eggs/applesauce, melted coconut oil, and vanilla extract.
Add dry ingredients to wet and mix until just combined. Let the mixture rest for 3 minutes.
Pour batter into the greased donut pan using a cookie scoop or piping bag, filling cavities to the top.
Bake for 12-15 minutes until golden brown. Allow donuts to cool for 5 minutes before removing from the pan.
While cooling, mix sugar, cinnamon, and apple pie spice in a small bowl.
Lightly coat donuts with oil spray and dip each side in the cinnamon-sugar mixture.
Enjoy the warm, fragrant goodness of these Gluten-Free Apple Cider Donuts!