Turkey Pot Pie made with leftover Turkey and Basic Pastry Dough

pastry dough:

5 1/3 cups of all purpose flour

4 sticks very cold unsalted butter (1 lb)

4 teaspoons salt

¾ cup ice water

cut butter and salt into the flour with a pastry blender until the mixture is like coarse meal. sprinkle ice water a tablespoon at a time and mix until a ball forms, cut in four, form four disks and refrigerate until ready to roll out.

turkey pot pie:

4 cups cooked turkey cut into 1” cubes