Mix shortening, flour and salt with pastry cutter until blended.
Slowly pour in cold water, stirring until mixture begins to come together.
Shape dough into ball; press into disk. Wrap in plastic wrap and chill for 30 minutes.
On a floured surface, roll chilled dough into a circle 2 inches bigger than bottom of pie plate. To lift pastry onto pie plate, carefully roll halfway around your rolling pin. Gently unroll dough onto pie plate, then press dough into plate without stretching. Flute edges.