01 - Lightly coat the interior of a microwave-safe mug with nonstick cooking spray, ensuring even coverage to prevent sticking.
02 - Add angel food cake mix and water to the prepared mug. Stir thoroughly until completely incorporated and mixture achieves a smooth, lump-free consistency.
03 - Transfer the mug to the center of the air fryer basket, ensuring proper air circulation around the vessel.
04 - Cook at 320°F for 7-8 minutes until cake has risen substantially and center appears set. Test doneness by inserting a toothpick—if it emerges clean, the cake is fully cooked.
05 - Using oven mitts or a thick towel, carefully remove the hot mug from the air fryer. Allow to rest for 1-2 minutes before handling further.
06 - Top with whipped cream and fresh berries if desired. Serve immediately while still warm for optimal texture and flavor.