Step 1

In a medium saucepan over medium-high heat, add milk, cocoa powder, sugar, cinnamon, vanilla extract, chili powder, cayenne pepper (if desired).

Step 2

Mix together with a whisk, add the bittersweet chocolate and heat until the chocolate has completely melted and the mixture is hot, but not boiling.

Step 3

Divide hot chocolate into 2 mugs and serve with marshmallows, chocolate shavings and a cinnamon stick.