01 - Preheat the air fryer to 400°F for 3 minutes.
02 - In a large bowl, toss pineapple chunks with brown sugar, cinnamon, salt, and melted coconut oil if desired, making sure all pieces are evenly coated.
03 - Arrange pineapple chunks in a single layer in the air fryer basket, working in batches if necessary to avoid overcrowding.
04 - Air fry for 8-10 minutes, shaking the basket halfway through, until the pineapple is golden, lightly caramelized, and slightly crispy on the edges.
05 - Serve warm as a snack, dessert, or topping for yogurt, pancakes, or grilled meats.