Preheat air fryer to 360 degrees F.
Roll out the pie crust and cut into 8 rectangles that are 3×6 inches.
Spoon about 2-3 tablespoons of apple pie filling onto 4 rectangles.
Top with the remaining four rectangles and crimp the edges with a fork.
Lightly brush each rectangle with the beaten egg,make several slits on top of the pies.
Sprinkle generously with cinnamon sugar.
Air fry for 8 minutes, or undil golden and crispy.
