Preheat your air fryer to 375°F for 5 minutes.
Mix 1 tablespoon melted butter, 2 tablespoons pure maple syrup, 1 teaspoon ground cinnamon, and a pinch of salt.
Dredge the pineapple chunks into the butter mixture, ensuring each piece is well-coated.
Place the coated pineapple pieces in the air fryer basket in a single layer.
Using the air crisp setting at 375°F, cook for 6 minutes.
Flip the pineapple pieces and cook for an additional 6 minutes until caramelized and golden.
Remove the grilled pineapple from the air fryer basket and serve immediately.
