Dice the granny smith apple and strawberries into small chunks, roughly ½" or less.
Add the chopped fruit and 3 Tbsp of water to a small pot, and turn up to medium heat. Allow to simmer 3-5 minutes. You’re looking for it to cook down and become mushy but not burn. If you feel the water evaporates too fast can add another Tbsp of water.
Add the cinnamon and powdered sugar and simmer another 2-3 minutes or until the mixture has thickened. You want most of the liquid to be evaporated off, but still chunky and wet.
Cut the puff pastry in thirds (I usually follow the folds for the frozen pilsbury puff pastry). Cut each third in half, then each of those in half again to make 6 pairs of rectangles. They're a little small, but they'll puff up in the oven to a great snacking size.
Stretch one rectangle slightly (be careful not to tear or rip the puff pastry). Add a heaping spoonful of filling to the center. Slightly stretch the second rectangle. Dip a finger in warm water and run it around the outside edge of the pastry. Top the second rectangle over the filling and pinch together the sides.
Press the edge with a fork to seal. Brush with egg wash and sprinkle with turbinado raw sugar (or white sugar) if desired. Lay the hand pie on a parchment paper lined baking sheet.
Repeat the previous step with the remaining 5 hand pies, arranging them on a baking sheet with enough space between them (at least 2"+)
Bake for 8-12 minutes at 350° or until brown and puffed. Eat warm or serve with chocolate sauce.