Preheat your air fryer to 350°F (175°C) for about 3 minutes.

Peel the ripe bananas and slice each one lengthwise into halves.

In a small bowl, combine melted butter, ground cinnamon, and optional brown sugar until it forms a smooth blend.

Use a pastry brush to generously coat each banana half with the butter mixture.

Carefully place the brushed banana halves in a single layer in the air fryer basket.

Air fry the banana halves for about 8-10 minutes, looking for a deep golden brown color.

Once cooked, remove the Air Fried Bananas and drizzle with vanilla extract.