Spoon a generous amount of filling onto the middle of half of the puff pastry rectangles.
Stretch the other rectangles to fit over the ones with filling. Press around edges to seal.
Press the tines of a fork around each pastry to close together.
Prick top of each pastry with a fork or knife to create a vent for steam.
Brush pastries with egg wash.
Bake at 425 degrees for 20 minutes until crispy and golden brown.
Notes
You can freeze these pastries after cooking and enjoy later. To reheat, allow to thaw in the refrigerator overnight, then bake at 350 degrees for 10 to 15 minutes until heated throughout. Cover lightly with aluminum foil to keep pastry from over cooking.
I recommend you purchase puff pastry in a single roll. Make sure you use actual puff pastry and not crescent rolls or phyllo dough. I use Wewalka brand and it turns out perfectly every time.