Gentlemen I am aghast!
Ibarra, Ghirardelli syrup, and fer cryin' out loud HERSHEY's syrup.

You're describing the chocolate equivalent of Hills Brothers and Starbucks. Yow! We're talking cocoa beans here not Halloween candy. Good chocolate is blended using different varietals prepared and combined with just as much care as the beans that are the precursor of that dark colored drink we all love to sip. The descriptors used in chocolate tasting are very similar to those used to in coffee tasting.
All kidding aside, find some good chocolate with at least 60% cacao solids. Shave it so it melts quickly and easily. Get some good quality cacao powder too. Microfoam some fresh high quality whole milk and add the shavings and cacao. If you like it sweet add some sugar. Stir and enjoy.
It's hard describe the proportion of chocolate to cacao powder to milk as quantities vary with individual ingredients and individual tastes.
Jon
Ps as Matt mentioned cayenne powder is a nice addition. I like to add a bit of rum to help bring the chocolate aromas up past the palate. And as Jim said you can make it with hot milk in the pan too.