Preheat oven to 425°F (220°C).
In a mixing bowl, combine flour and salt for the crust. Cut in butter until mixture resembles coarse crumbs. Stir in ice water, a tablespoon at a time, until mixture forms a ball. Divide dough in half and shape into discs. Wrap in plastic wrap and refrigerate for at least 30 minutes.
Roll out one disc of dough on a lightly floured surface to fit a 9-inch pie dish. Transfer dough to pie dish and trim edges.
In a large bowl, toss apples with sugar, flour, cinnamon, nutmeg, and lemon juice. Pour apple mixture into crust-lined pie dish.
Roll out second disc of dough and place over filling. Trim, seal, and flute edges. Cut slits in top crust to allow steam to escape.
Bake in preheated oven for 45-50 minutes, or until crust is golden brown and filling is bubbly. Cool on a wire rack before serving.