When the filling is cooling, take the cold dough from the refrigerator and divide it into two uneven pieces (⅔ and ⅓). Keep the smaller piece refrigerated and covered while you roll the other one.
Roll the large piece to about ¼ of an inch with a lightly floured rolling pin, using additional flour to prevent sticking.
Transfer it to a 9-inch (24cm) pie plate with a removable bottom. It is best to make it fit in the pan without stretching it, removing excess dough. Refrigerate it for 15-20 minutes before filling. Meanwhile, stir the filling so it cools down faster.
Add the cooled apple filling to the cold lined pan and spread to cover the whole pan. Freeze the pie plate for 10-15 minutes (or refrigerate for 30 minutes if you have no other option).
Meanwhile, preheat the oven to 400ºF (200°C).
When ready, roll the small piece of dough on a lightly floured surface and cut strips with a pizza cutter.
Make a lattice top crust over the filling, adding strips one way and then the other, creating a crisscross pattern. Press where the strips meet the bottom dough to adhere.
Take the pie from the freezer or refrigerator, brush with water or milk and sprinkle 2 tablespoons light brown sugar on top of the lattice.
Bake in the middle rack for about 20 minutes and then turn the oven temperature down to 350ºF (180°C) and bake for 20-25 more minutes, or until golden and the filling is bubbly. If the top is browning too quickly, cover the edges with foil (not the center, so the steam can evaporate).
Let cool completely on a wire rack. Cut cold if possible, after refrigerating it and serve with a dollop of whipped cream or ice cream and a sprinkle of cinnamon.