Remove dough from refrigerator and remove from the plastic wrap.
On a generously-floured work surface, roll the dough until it is about 1/8-inch thick.
Use a 5 inch round cookie cutter to cut the dough into circles. Reroll dough as needed in order to create 8-10 circles.
Add one heaping tablespoon of filling to the center of each dough circle, leaving as much liquid behind as possible.
Fold the dough in half and use your fingers or a fork to seal the edges.
Place hand pies on prepared baking sheet.
In a small bowl, whisk together the egg and water.
Use the tip of a sharp knife to cut 2 small slits into the tops of each pie.
Use a pastry brush to lightly brush the tops of the hand pies with the egg wash. If desired, top with sparkling sugar.
Bake in preheated for 20-22 minutes or until golden brown. Allow hand pies to cool. If desired, serve with homemade salted caramel sauce.