Position knife blade in food processor bowl; add flour and salt. Top with cover, and process pulsing 3 or 4 times or until combined. Add shortening to flour mix.
Process pulsing 5 or 6 times or until mixture resembles coarse meal. With processor running, slowly add water (1 tablespoon at a time); process only until dough leaves sides of bowl. Cover and chill 30 minutes. To fit into pie plate, roll dough to 1/8 inch thickness on a lightly floured surface.
Place in a 9 inch pie plate; trim off excess pastry along edges. Fold under and flute. For baked pastry shell, prick bottom and sides of pastry generously with a fork; bake at 425°F for 10-12 minutes or until golden brown.
Servings: one 9 inch pie