I hurredly wrote down the directions, because I am a hot chocolate fanatic. When I made it today I doubled the recipe, and used semi-sweet chocolate. (He never said what kind of chocolate to use, and I was afraid milk chocolate would be too sweet). Now he does warn that this is a rich hot chocolate. I got it all mixed together (with a few ounces less chocolate than what the recipe calls for) and gave it a taste. WOW!!! Uber Super rich! I added milk to my cup and it was still way too rich. I had to add a lot of milk to make it to where it was still rich, but drinkable.
In the future I am using a lot less chocolate, and I am going to use milk chocolate (it wasn't quite sweet enough for me after all). Otherwise it is pretty good. I have the leftovers in jars to put in the fridge. Once milked down, and maybe a touch of sugar mixed in, it will make great hot or cold chocolate milk.