Candy Cane Letters Take off the plastic on your candy canes. It doesn’t matter if these break from opening, as they need to be all different sizes anyway. Place onto a tray lined with parchment paper or a silicone baking mat into fragments or the complete letter shapes you want. Put the tray into a 250 degree oven for 10 minutes. Shape them (be careful, hot) right out of the oven into letters. They are movable for a minute or two. Some letters may keep breaking, so you can just use them as lines and form the letters that way as well.