Combine milk, chile pepper and cinnamon stick in a small sauce pot over medium-low heat. Bring to a low simmer for about 10 minutes until cinnamon is fragrant, stirring occasionally so milk doesn't burn or boil.
Add chocolate, sugar, vanilla and spices and whisk until the chocolate is melted and the mixture is smooth, about 4-5 minutes. Remove cinnamon stick and chile pepper from the pot.
Pour into a mug and top with dash of cinnamon, cocoa powder, red pepper flakes, marshmallows and/or whipped cream.
Notes
*You can use any milk, nut milk or milk combination you'd like.