Preheat air fryer to 350°F (175°C) for 3 minutes
Separate biscuit dough into 8 individual biscuits
Cut each biscuit into 4 equal pieces
Roll each piece into a smooth ball
Spray air fryer basket with cooking spray
Place churro bites in single layer with space between each
Spray tops lightly with cooking spray
Cook for 4 minutes then shake basket
Cook another 3-4 minutes until golden and puffy
Meanwhile mix sugar and cinnamon in a bowl
Heat cream and pour over chocolate chips
Stir until smooth then add butter and vanilla
Brush hot churro bites with melted butter
Toss immediately in cinnamon sugar mixture
Serve with warm chocolate dipping sauce