It seems the most extravagant and complex drink on this list.
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In a water bath, melt the chocolate. In a separate saucepan, heat the milk (not boiling), add sugar, cinnamon, chili. If you like very sharp dishes, break chili and crumble into a pan, not forgetting about the seeds.
Warm the milk with spices. Remove from the plate and pour through a sieve into the container with chocolate. Add cognac and sugar to taste. Stir, keep for 10-15 minutes in a water bath. Serve in small cups.