Never Fail Pie Crust

3 cups flour
1 1/2 cup of shortening
1 egg
1 tsp vinegar
1 tsp salt
5 Tbl ice water

Sift flour, blend in shortening a pastry tool until the dough is the consistency of small peas.  Beat egg, add vinegar, salt and water .  Mix with fork til mixture leaves sides of the bowl and forms ball..  Rolle between two sheets of wax paper.  Gently place over pie plate, press into the sides and trim the edges   Fold the edges under and flute the edges.