Make cookie dough blending cookie mix, butter, egg, flour, hazelnuts, cranberries and 1 1/2 cups chocolate chips until stiff dough forms. Roll half of dough at a time into 8 x 2 1/2 inch rectangle. bake at 350 for 20-25 minutes on ungreased cookie sheet. Cool 15 minutes.
Cut each rectangle crosswise into 3/4-inch slices. Place slices, cut sides down, on cookie sheet. Bake 10-12 minutes, turning once, until crisp. cool; place biscotti on cooling racks. Cool completely.
Microwave chocolate chips on High 30-60 seconds; stir until smooth. Drizzle chocolate over one side of each biscotti. Let stand until chocolate is set.