Using a baking hole punch, punch hole in the center of biscuit to form a donut shape. Keep the centers for making donut holes!
Spray the air fryer basket lightly with oil and place four donuts in it, leaving space to expand. Spray donuts with oil.
Cook at 390 degrees for five minutes
Make the Glaze
Mix powdered sugar, vanilla, melted butter and evaporated milk until completely combined.
Place donuts on cooking resting rack over a baking sheet.
Pour glaze over the donuts. Place a tray under the cooling rack to catch any glaze that drips off. Re-glaze donuts several times.
Biscuit Choice: Use buttermilk style biscuits, don't reach for the pull-apart style biscuits or they will mess up the donuts. Thicker Glaze: If you want your glaze thicker add a bit more powdered sugar. For thinner glaze add more evaporated milk. Variations: Change up the glaze used on the donuts to make a chocolate version, maple, cinnamon or lemon, etc. Batch Cooking Donuts: Cook in batches as there won't be enough room to cook them all at the same time. Air Fryer Make Room: Make sure the donuts don't touch each other, or they will not cook up properly. Air Fryer Differences: All air fryers heat differently so make sure to watch the cooking time. Ninja Foodi And Instant Pot Duo Crisp - You can also cook these donuts using your crisping lids in these devices. Make sure to follow the same directions above.