Preheat oven to 375° and line baking sheet with parchment paper.
Toss together the apples, sugars, flour, lemon juice and spices.
Dust work surface. Roll pie crust dough out and use a cutter to make an even number of shapes.
Top half of the shapes with about 2 tbsp of apple mixture, placing chopped caramel pieces on top. Leave a decent space between mixture and the edges (at least 1/2-3/4 inch). Place the other empty halves on top and seal using a fork to crimp along the edges.
Move pies onto the baking sheet. Whisk together egg and tsp of water in small bowl. Brush tops of pies with the egg wash and sprinkle sea salt over. Cut a couple of vents to the tops of each pie with a paring knife. Bake for 30-35 minutes or until golden brown.