I use Mayan organic cocoa - and make my hot cocoa with organic whole milk - with a dash of cayenne pepper (the ancient Mayans uses red pepper in their chocolate drink) and a dash of pure vanilla -
However, I suspect the Mayans (royalty only were allowed chocolate) didn't use any milk - or Llama milk?
No llamas in Mexico.
They mixed it with water, chilies, vanilla and cornmeal. They might have added in a bit of agave nectar.