A step-by-step guide to making melting hot cocoa bombs at home, plus fun ideas for flavors, fillings, and decoration. Hot chocolate or "cocoa" bombs are the new sweet must-have. Having initially taken social media by a storm, their popularity means they are now sold in store and on-line and are on everyone's wish-list for the holidays But just what are they? Basically, they are a pi ata that melts in your cup... Hollow spheres of chocolate...