
Separate biscuits. Use a small round cutter or bottle cap to cut a hole in the center of each.
Air fry donuts and donut holes at 350°F for 5-6 minutes until puffed and golden.
Immediately brush with melted butter, then toss in cinnamon sugar mixture.
For glazed donuts, whisk powdered sugar, milk, and vanilla. Dip warm donuts in glaze.
Serve warm — they're best fresh out of the air fryer.
Tip: Don't skip brushing with butter first — the cinnamon sugar won't stick otherwise. Cook donut holes separately since they take about 3-4 minutes.
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