Begin by preheating your air fryer to 390 degrees.
Prepare you donuts glaze by mixing ¼ cup milk (or water) with 2 cups powdered sugar. Stir together until the sugar is completely dissolved. Set it aside for later!
Poke the center out of the biscuits using a circular cookie cutter, a small cup, shot glass, or even a plastic water bottle cap. Whatever you have laying around will work! Save the center portion to make donut holes!
Place the donuts in the air fryer with the bottom sprayed with a non-stick cooking spray.
Air fry the donuts for 5 minuts
Now drop your donuts into the glaze and coat them thoroughly! You can also just use a basting brush to cover the tops. Rinse and repeat! You can also add your own sprinkles or a little bit of cinnamon for some extra flair and taste.