For a 9-inch pie

1 1/2 cups all purpose flour
1/2 cup shortening
1 teaspoon light brown sugar
1/2 teaspoon salt
1 teaspoon white vinegar
1 beaten egg
4 tablespoons cold water

In a large bowl, mix together flour, and shortening. In a small bowl, combine the sugar, salt, vinegar, egg, and water. Blend all ingredients to form a ball. Add more water if necessary.
Chill dough and use as needed.