Start by peeling the green bananas or plantains, then slice them into thin rounds about 1/8 inch thick.

Drizzle the sliced bananas with olive oil or coconut oil, ensuring each piece gets a light coat. Sprinkle in salt and any optional spices, then toss gently.

Carefully lay the seasoned banana slices in a single layer within the air fryer basket.

Set your air fryer to 350°F (175°C) and cook the banana slices for about 10–12 minutes, flipping them halfway through.

Once cooked, transfer the crispy chips to a wire rack or a plate to cool completely.

Store your banana chips in an airtight container once cooled.