For Rich Butter Pastry, in a medium bowl stir together flour, sugar, and salt. Using a pastry blender, cut in shortening and butter cubes until pieces are pea-size. Sprinkle 1 Tbsp. of the water over part of the flour mixture; toss with form. Push moistened pastry to side of bowl. Repeat moistening flour mixture, using 1 Tbsp. of the water at a time, until all the flour mixture is moistened. Gather flour mixture into a ball, using hands to combine until it holds together. Divide pastry into two portions, one portion with 1/3 of the dough and one portion with 2/3 of the dough. Shape the smaller pieces of pastry into 5x1 1/2- inch round log. Shape the larger pieces of dough into a 7x2-inch round log. Wrap pastry with plastic wrap and freeze for 1 to 2 hours or until firm.