01 - Preheat the air fryer to 350°F for 3 minutes.
02 - Peel bananas and slice into 1/8-inch thick coins using a sharp knife or mandoline.
03 - In a medium mixing bowl, gently toss banana slices with melted coconut oil until evenly coated.
04 - In a small bowl, combine granulated sugar, ground cinnamon, and a pinch of salt.
05 - Sprinkle half of the cinnamon sugar mixture over coated banana slices and toss to distribute.
06 - Place banana slices in a single, non-overlapping layer in the air fryer basket; cook in batches if needed.
07 - Air fry for 12 to 15 minutes, flipping halfway through, until golden and crisp. Monitor closely to prevent over-browning.
08 - While warm, gently toss banana chips with the remaining cinnamon sugar mixture for optimal flavor.
09 - Allow banana chips to cool completely for maximum crispness before serving.