PISTACHIO-WALNUT COOKIES

Steps:

• In a large bowl, cream butter and sugar until light and fluffy, 5-7 minutes. Beat in egg and vanilla. In another bowl, whisk flour, baking powder and nutmeg; gradually beat into creamed mixture., Divide dough in half. Shape each into a disk. Cover and refrigerate 2 hours or until firm enough to roll., Preheat oven to 375°. On a lightly floured surface, roll each portion of dough to 1/8-in. thickness. Cut with a floured 2-1/2-in. flower-shaped cookie cutter. Using a floured 1-in. flower-shaped cookie cutter, cut and remove the center of each. Reroll removed centers and scraps. Place cookies 1 in. apart on greased baking sheets., In a small bowl, whisk egg white and water until blended; brush lightly over tops. Sprinkle with pistachios and walnuts., Bake 8-10 minutes or until edges are golden brown. Cool on pans 2 minutes. Remove to wire racks to cool completely., If desired, drizzle tops with melted chocolate. Let stand until set.