01 - Preheat the air fryer to 375°F for 3 minutes to ensure proper caramelization.
02 - Combine brown sugar and ground cinnamon in a small bowl, mixing until evenly incorporated.
03 - Lightly brush pineapple slices with melted coconut oil or spray with cooking spray for enhanced browning.
04 - Generously sprinkle both sides of each pineapple slice with the cinnamon-sugar blend, pressing gently to adhere.
05 - Place pineapple in a single layer in the air fryer basket, cooking in batches if necessary to avoid overcrowding.
06 - Cook for 8-10 minutes, flipping halfway through, until golden brown and caramelized with tender edges.
07 - Drizzle with vanilla extract immediately before serving. Enjoy warm plain or topped with dairy-free ice cream or coconut yogurt.