1/8 teaspoon activated charcoal powder, to make the drink black (optional)
Dry ice pellets, for garnish* (optional)
Instructions
To make the syrup, add cola, cloves, cardamom, star anise, cinnamon and rosemary to medium saucepan over medium-high heat. Bring to a boil, reduce heat to medium-low and simmer for 15 minutes. Let cool completely, then strain into a clean jar or bottle. You should have about 1/2 cup syrup. Store in the refrigerator until ready to use.
To make the cocktail, add bourbon, scotch, syrup, lemon juice and bitters to a mixing glass with ice. Stir until well-chilled. If you’d like to make the cocktail black, stir in activated charcoal powder. Strain into a coupe glass.
To make the cocktail foggy, add a small bit of dry ice to the drink. Just make sure the dry ice is completely evaporated (it will stop bubbling and smokinbefore you consume the drink.
Notes
* Do not ingest or swallow dry ice. Make sure the drink stops bubbling and smoking before you drink it. Always use gloves when handling dry ice.