Pour heavy cream into a bowl and whip till soft peaks have formed. Reserve enough for topping your hot chocolate and place the rest into a sauce pan.
3 cups heavy cream
Chop your chocolate bars into small pieces to help speed up the melting time.
16 oz 60% dark chocolate
Add the milk and cinnamon sticks to the pan, stir to combine.
2 cups whole milk, 3 sticks cinnamon
Using medium heat, bring this mixture to a simmer, stirring to avoid burning.
Once milk mixture is simmering, add the chopped chocolate. Whisk gently until the chocolate has melted completely. Add condensed milk and whisk in.
14 oz sweetened condensed milk
Remove the cinnamon sticks and serve into mugs. Top with optional fresh whipped cream, shaved chocolate, and pinch ground cinnamon. Add your favorite liquor if desired.