01 - Set air fryer to 400°F (200°C) and preheat for 3 minutes.
02 - In a large bowl, combine pineapple chunks with maple syrup or honey (if using), cinnamon, and sea salt, ensuring all pieces are evenly coated.
03 - Place coated pineapple chunks in a single, even layer within the air fryer basket. Avoid overcrowding to ensure caramelization; cook in batches if needed.
04 - Air fry for 8 to 10 minutes, shaking the basket or turning the pineapple halfway through, until edges are golden and caramelized.
05 - Carefully remove pineapple from the air fryer and let cool slightly before serving. Enjoy warm or at room temperature.