In a medium bowl, combine granulated sugar and ground cinnamon. Whisk the mixture together until thoroughly combined.

Melt butter in a microwave-safe bowl. Using a pastry brush, coat both sides of each flour tortilla with melted butter. Generously sprinkle the cinnamon sugar mixture over the tortillas.

Starting at one edge, tightly roll each tortilla into a log shape and slice each log into 1-inch pieces.

Preheat your air fryer to 350°F (175°C) for about 5 minutes. Place the rolled tortilla pieces in a single layer in the air fryer basket. Cook for 5-7 minutes until golden brown.

Carefully remove the rolls from the basket and let them cool for a minute or two. Serve warm.