From what I can gather, xocolatl is made with chilis, unsweetened cocoa powder, vanilla, spices, and water. So I rehydrated a dried chili in hot water. When it softened, I scraped the pulp and seeds into the water and discarded the skin and stems. To the pepper-water mixture I added unsweetened cocoa powder, a splash of vanilla, a dash of cinnmon. I whisked it smooth and brought it to a boil. Then I reduced the heat and simmered for about 5 minutes until it began to thicken. I served it in thimble-sized cups...just in case. The verdict: "It's not too bad, Mom, it is bitter water. Now, can you add some sugar, please?"