Holiday Scottish Shortbread
["1/2 c. unsalted butter, softened", "1/4 c. sugar", "1 1/4 c. all-purpose flour", "3/4 c. semi-sweet chocolate chips", "2 Tbsp. pistachio nuts, coarsely chopped"]
["Preheat oven to 275\u00b0.", "Grease an 8 inch square baking pan and set aside.", "In a small bowl, with electric mixer at medium speed, cream butter and sugar until light and fluffy.", "Beat in flour until well mixed.", "Pat dough evenly into bottom of pan.", "With tines of fork, prick dough all over to prevent bubbles from forming during baking.", "Bake 1 hour or until pale golden. Do not allow to brown. Remove from oven."]
["unsalted butter", "sugar", "flour", "semi-sweet chocolate chips", "pistachio nuts"]