Allow the pastry sheets to thaw on the counter, approximately 10 minutes.
Spread the pastry sheets out flat on a lighlty floured work surface and cut each sheet into 4 squares, 8 pieces total.
Spread pizza sauce on 4 of the squares and then top with mozzarella cheese and pepperoni.
Place the remaining pastry squares on top of the filling. Use a fork to seal around the edges.*
Cook in the air fryer for 15 minutes.
Allow to cool for a few minutes and enjoy!
Notes
*If you’re having trouble getting the puff pastry to seal together, dip a fingertip in water and run it between the edges of the pastry sheets to help “glue” them togetherYou can also bake these in the oven if you don't have an air fryer. They'll take a few minutes longer to cook in the oven.