01 - Insert a long wooden or metal skewer through the center of each potato lengthwise.
02 - While holding the skewer, use a sharp knife to slice each potato in a continuous spiral motion, rotating from end to end. Gently stretch along the skewer for even spacing.
03 - Combine olive oil, garlic powder, smoked paprika, salt, and black pepper in a small bowl. Mix thoroughly.
04 - Brush or rub the seasoning mixture over the entire surface of each spiraled potato, ensuring coverage between the layers.
05 - Set the air fryer to 375°F and allow it to preheat for 3 minutes.
06 - Place the prepared potatoes on skewers in the air fryer basket, ensuring they do not touch.
07 - Cook for 20 to 25 minutes, turning each potato halfway through the process, until crisp and golden brown.
08 - Sprinkle with Parmesan, chopped parsley, and chili flakes before serving, if desired.