01 - Preheat the air fryer to 350°F for 3 minutes.
02 - Peel bananas and slice into 1/8-inch thick rounds using a sharp knife or mandoline.
03 - Gently toss banana slices in a mixing bowl with melted coconut oil to ensure even coverage.
04 - In a separate small bowl, combine granulated sugar, ground cinnamon, and a pinch of salt.
05 - Sprinkle half of the cinnamon sugar mixture over the banana slices and toss to coat evenly.
06 - Arrange coated banana slices in a single, non-overlapping layer in the air fryer basket. Work in batches if necessary.
07 - Air fry for 12–15 minutes, flipping the slices halfway through, until golden and crisp. Monitor closely near the end to prevent over-browning.
08 - While still warm, toss banana chips with the remaining cinnamon sugar mixture.
09 - Allow banana chips to cool completely to achieve a crispy texture before serving.