Combine apples, cranberries, sugar, salt and cinnamon in a small sauce pan. Cook, stirring frequently, until the cranberries have burst and the apples are soft.
Transfer the mixture to the bowl of a food processor or blender and process until smooth.
Preheat the oven to 350.
Divide dough in half. Roll out each half into a 10 inch circle on a lightly floured piece of parchment paper. The crust should be 1/4 inch thick. If the circles are slightly smaller than 10 inches that is fine as long as the thickness is right.
Spread the cranberry apple filling evenly over one pie crust, leaving a 1/4 inch border around the edges. Top with the second crust.
Using a pastry cutter (or sharp knife) cut the dough into 3/4 inch strips. Cut the strips in half to make fry shapes. Transfer the fries to a parchment lined cookie sheet.
Combine the egg and one tablespoon of water and beat with a fork to mix. Brush the fries with the egg wash and generously sprinkle the fries with coarse sugar.
Bake for 16-18 minutes, or until the fries are golden brown. Let cool before serving.
Enjoy these on their own or dipped in Cinnamon Pastry Cream.
*To make these vegan omit the egg wash and simply brush the fries with water to help the sugar and spices stick. Here's the recipe for the vegan pie crust.