Line a large baking sheet with parchment paper. Lightly oil paper with cooking oil spray. Set aside.
In a small bowl, prepare the cinnamon sugar for later. Stir sugar and cinnamon. Set aside.
Grate a small green apple finely. Squeeze the grated apple in your hands to remove the juice. Set the grated apples aside.
In a mixing bowl, or the bowl of a stand mixer, using the paddle attachment, add self-rising flour, cinnamon applesauce, and shredded, squeezed green apples.
Stir with a rubber spatula, then oil your hands and knead the dough. If it is too moist—this happens if you didn't squeeze out all the apple juice—stir in more flour 1 tablespoon at a time.
Keep kneading, and adjust flour if needed until a soft dough ball forms. Rub the dough with melted coconut oil or light flavor oil.
Grease your hand with oil, grab about a tablespoon of dough, roll it into a ball, and place it on the prepared baking sheet. Repeat until all the dough balls. Spray avocado oil on top of the balls, leaving 1 inch (3 cm) apart as they expand.
Bake the donut holes at 350 °F (180 °C) for 10-12 minutes until puffy and golden brown.
To make these apple balls taste like donuts, brush each warm donut hole with melted coconut oil using a pastry brush. Then, roll the warm, oiled balls into cinnamon sugar to coat evenly.
Serve warm immediately.
