Foolproof Pie Crust
["4 c. flour", "1 3/4 c. shortening", "1 Tbsp. sugar", "2 tsp. salt", "1 Tbsp. vinegar", "1 egg", "1/2 c. water"]
["Mix dry ingredients with a fork.", "In separate dish, beat remaining ingredients.", "Stir into flour mixture until moistened. Mold into ball.", "Chill before rolling."]
["flour", "shortening", "sugar", "salt", "vinegar", "egg", "water"]