Add the apples, caramel, cinnamon, nutmeg and salt into a 3 quart or larger slow cooker. In a small bowl mix together the cornstarch and water, add to the slow cooker.
Stir everything until combined.
Cover, and cook on HIGH for 2 hours. Stirring once or twice during those 2 hours.
In a small bowl, combine the cinnamon and sugar.
Preheat the oven to 350 degrees.
Spread out one pie crust at a time onto a baking sheet. Using a pastry brush, spread on the milk. Sprinkle half of the cinnamon sugar mixture onto the pie crusts.
Using a pizza cutter or knife cut the pie crusts into serving strips.
Spread out the strips on the baking sheet so they don't bake together.