Preheat oven to 425 F.
Place apples in water and bring to a boil. Let cool in liquid. Drain.
Do not discard liquid. Place apples in pastry-lined 9-inch pie pan.
Sprinkle with mixture of sugar, cinnamon and salt. Add 1/2 cup liquid
drained from apples, dot with butter, cover with top pastry.
Bake 35 to 40 minutes, or until crust is golden brown. Remove from oven and cool on a wire rack.