To make chocolate ribbons (optional): Melt chocolate according to package directions and stir until completely melted. (diginwithdana.com)
Your Cinnamon Cake looks really tasty with the cinnamon / chocolate ribbon swirled around the middle and the frosting looking satiny! (shortbreadsouth.com)
and a drizzle of melted chocolate that freezes as soon as it hits the ice cream, leaving a crunchy chocolate ribbon all the way through. (coffeeandquinoa.com)