1. Place oven rack in lowest position. Preheat oven to 400 Degrees F.
2. To prepare crust, in a medium bowl, mix together flour and salt. Using a pastry blender cut shortening into flour until coarse crumbs form.
3. Add water, 1 tablespoon at a time, tossing with a fork, until a dough forms. Shape into a disk, wrap in plastic wrap, and chill for 30 minutes.
4. On a floured surface, using a floured rolling pin, roll dough into a 12 inch circle. Fit into a 9 inch pie pan. Trim excess dough, leaving a 1 inch overhang; make a decorative edge.
5. To prepare filling, mix together all filling ingredients. Spoon into crust.
6. To prepare topping, in a small bowl, mix together brown sugar, flour, and nutmeg, using a pastry blender, cut butter into brown sugar mixture until coarse crumbs form. Sprinkle apples evenly with topping.
7. Bake pie until topping is lightly brown and filling is bubbly, about 35 minutes. If pie is over-browning, cover loosely with foil.
8. Cool on a wire rack.
