Scotch Shortbread
["1/2 c. soft butter", "1/2 c. soft margarine", "1/2 c. plus 2 Tbsp. sugar", "2 1/2 c. flour"]
["Mix together thoroughly the first 3 ingredients.", "Sift in the flour; mix thoroughly with hands.", "Roll out to 1/3 to 1/2-inch thick.", "Chill; cut into finger size pieces.", "Place on ungreased cookie sheet.", "Prick with a fork; press edges with fork.", "Bake at 350\u00b0 for 20 minutes.", "Watch closely, as they brown quickly."]
["butter", "margarine", "sugar", "flour"]