1Heat oven to 375°F. In large bowl, stir together cookie mix, pudding mix and flour. Stir in melted butter and eggs until soft dough forms. Stir in pistachios and cranberries. Divide dough in half. On each of 2 ungreased cookie sheets, shape half of dough into 15x2-inch log.
2Bake 18 to 20 minutes or until golden brown. Cool on cookie sheets 20 minutes. Reduce oven temperature to 250°F. Place logs on cutting board. Cut crosswise into 3/4-inch slices. Place slices cut sides down on ungreased cookie sheets.
3Bake 40 minutes, turning once. Immediately remove from cookie sheets to cooling racks. Cool 10 minutes. With small, fine strainer, lightly sprinkle powdered sugar over tops of cookies. Store loosely covered.