Heat the coffee, vanilla beans and seeds, and cinnamon sticks in a medium saucepan over high heat. Bring to a boil and continue to cook until the liquid has reduced to about 1/4 cup, about 10 minutes.
Add the milk, cream and chipotle powder to the pan, lower the heat to medium, and bring to a gentle simmer. Place the Mexican chocolate and the semisweet chocolate in a medium-sized bowl. Strain the milk and cream mixture over the chocolate, and stir, using a whisk to melt the chocolates. It may be necessary to place the bowl over a double boiler to ensure that all of the chocolate will melt smoothly.
Place the chocolate in a fondue pot over a low flame to keep warm, and serve with assorted dipping ingredients.
Yield: 4 servings