Preheat your oven to 400 degrees.
Carefully unfold one sheet of your pastry dough. Cut into 6 rectangles.
Fill three of your rectangles with 2-3 tablespoons of apple pie filling. Press a second rectangle onto the top pinching the edges to seal shut creating your turnover.
Brush the tops with your egg and cut small slits in the top to vent.
Bake 20-25 minutes or until lightly browned.
For the frosting combine the powdered sugar, butter, vanilla, and milk. Drizzle over your pastries.