Add all the ingredients to a shaker with ice and shake.
Strain into a Tiki mug filled with crushed ice.
Garnish with cacao dust.
*Cinnamon-honey syrup: Bring 2 cups of water and 4 cinnamon sticks to a boil, and let simmer for 15 minutes. Add 2 cups honey and stir to dissolve. Let cool before using.