Scotch Shortbread
["1 c. (2 sticks) butter", "1/2 c. sugar", "2 1/2 c. all-purpose flour", "1/4 tsp. salt"]
["Cream butter.", "Gradually add sugar; beat until light and fluffy.", "Combine flour and salt; gradually add to creamed mixture. Blend well.", "Roll out dough on a lightly floured surface to 11 x 17-inch rectangle 1/2-inch thick.", "Cut into 1-inch squares or diamonds.", "Transfer to cookie sheets.", "Prick cookies with a fork. Bake in preheated 300\u00b0 oven for 25 to 30 minutes or until lightly browned.", "Remove immediately to wire racks to cool.", "Yields about 70."]
["butter", "sugar", "flour", "salt"]