1In large bowl, beat granulated sugar, brown sugar, peanut butter, butter and egg with electric mixer on medium speed, or mix with spoon. Stir in flour, baking soda and baking powder.
2Wrap dough in plastic wrap, leaving ends open. Roll dough into log, about 7 inches long. Pinch along top of log and plastic to form one corner of triangle. Roll log over; pinch again to form second corner. Roll log over; pinch again to form third corner. Straighten sides of log to form a triangular-shaped log. Close ends of plastic wrap; refrigerate at least 2 hours.
3Heat oven to 375°F. Unwrap log; cut into 1/4-inch slices. Insert 1 inch of wooden stick into a corner of each cookie. Place slices about 2 inches apart on ungreased cookie sheet. Reshape cookies if necessary. Insert 2 pretzels into top of each cookie slice for antlers. Bake 6 to 8 minutes or until edges are firm. Cool 1 minute; remove from cookie sheet to wire rack. Cool completely.
4Line plate with waxed paper. Place chocolate and shortening in small microwavable bowl. Microwave uncovered on Medium (50%) 3 to 4 minutes, stirring after 2 minutes, until mixture is smooth. Dip half of each candy-coated chocolate into chocolate, using tweezers to hold candy. Let dry on waxed paper. Attach chocolate-dipped and cinnamon candies to cookies using melted chocolate mixture (reheat if necessary) for eyes and nose of reindeers. Store in airtight container.