Use a small heart-shaped cutter to cut a hole in the center of each biscuit.
Spray air fryer basket with olive oil cooking spray.
Place biscuits in a single layer in the air fryer, make sure they do not touch.
Cook the biscuits at 400 degrees for 4 minutes. They should be fluffed up and light brown on top! You can also cook the heart cut out shapes at 400 degrees for 3 minutes.
Brush each donut with melted butter and roll in cinnamon and sugar.