This is a recipe from an old Marcia Adams book. I would guess it is from a book from 10 or so years ago. Good pastry recipe for the cook who is afraid of making pie crusts. This recipe is made with an electric mixer and is so easy. The picture below shows this pastry being cut for small hand pies but this recipe makes enough for two regular two-crust pie.
4 cups all-purpose flour
1 tbsp sugar
2 tsps salt
1 3/4 cups butter-flavored solid vegetable shortening
1 large egg
1 tbsp cider vinegar
1/2 cup water
In large mixer bowl, place the flour, sugar, salt, and shortening; blend until it has the texture of coarse crumbs.
In a small bowl, beat together the egg, vinegar, and water; drizzle over the flour mixture and mix thoroughly.
Shape the dough into a 6-inch patty, wrap in plastic wrap, and freeze for 45 minutes or refrigerate overnight.
To prepare the dough for pies, form into a long roll, divide into fourths, and wrap each portion separately and refrigerate or freeze.