Flaky Pie Crust

3 cups sifted flour
1 t salt
1 ¼ cup shortening
1 egg, well beaten
1 T vinegar
4 T water
3 T sugar

Sift flour, measure and sift into bowl with sugar and salt.  Add shortening and blend.  Combine egg with vinegar and water.  Drizzle over the flour mixture.  Mix.