These treats are the perfect bite-sized XX's. A plate of these "I'll just try one" treats disappears the second they are set out. They may be made larger, but the small size contributes to this sweet's charm. Little can go wrong with this cookie, but I do suggest making them on a dry, less humid day or the texture will be a bit chewier. Children love adding the food coloring, squeezing the piping bag, and dipping in just a wee bit too much chocolate--usually so they get to eat that one and lick the ganache from their fingers. Merry to all!