Makes: 8 trees.
Make double recipe Basic Holiday Cookie dough. Roll out quarter of dough at a time on well-floured surface, 3/16 inch thick. Cut out trees with 5-1/2-inch tree cutter. Reroll scraps cut out trees for a total of 16.
Bake on pans coated with cooking spray in 350°F oven 12 minutes, until lightly browned at edges. While still warm, cut 8 trees in half vertically. Cool on rack. Spread one side of cookies and edges with green icing. Press on candy-coated chocolate candies. Let dry. Repeat with other sides. Let dry. Pipe band of icing down center of whole trees on both sides. Push half-tree into icing band on both sides. Hold until icing firms. Let dry. Dust tops with confectioners sugar.