As the donuts are baking, make the cinnamon sugar mixture. Combine coconut sugar and cinnamon in a small bowl. Remove the donut pan from the oven when the donuts are done baking.
Sprinkle about ½ teaspoon of the cinnamon sugar mixture over each donut and use the back of the spoon to rub it in. Allow the donuts to cool, remove from the donut pan and enjoy!