Special chocolate garnishes can be used to decorate cakes, cupcakes, and more.
Trace several hearts onto a sheet of paper. Spoon the chocolate mixture into a decorator tube with a writing tip attached, or a disposable tube with the tip cut off. Pipe the mixture around the outside of the heart design first, then fill in with a random filigree pattern. When the chocolate is firm, carefully lift the hearts off the paper using a pastry knife.