Preheat your air fryer to 375°F (190°C).
In a small bowl, mix the sugar and cinnamon together.
Brush the puff pastry with melted butter and sprinkle the cinnamon-sugar mixture evenly on top.
Cut the puff pastry into strips, twist them, and place them in the air fryer basket.
Air fry for 8-10 minutes until golden brown and crispy.
Let cool slightly and enjoy!