Heat oven to 425°F. Cut each apple into 8 wedges. Lightly spoon flour into measuring cup; level off. In medium bowl, blend flour and salt. With pastry blender or fork, cut in shortening until mixture resembles coarse crumbs. Sprinkle flour mixture with water 1 tablespoon at a time, mixing lightly with fork until dough is just moist enough to hold together. Shape dough into ball.