Carefully layer the apples into the pie shell. Tuck them tightly against the edges and on top of each other.Take a couple of tablespoons of butter and cut into dots. Dot the top of the apples with this butter (about 4-5 tablespoons). This is very important! Do not skip this step.
Lay the second rolled out pie crust on top of the apples. Crimp the edges together and decorate the top as you wish. If leaving undecorated, cut a couple of slices at the top of the crust to let the steam escape.
Brush the top with milk and sprinkle with sugar (coarse or white sugar can be used).Bake for 1 hour and until bubbly. If it is getting too brown on top before finished, lay a piece of foil loosely on top and finish baking.