A cocktail smoker is a device used to infuse smoke into cocktails. The gadget burns wood chips, which sends smoke via a glass box. This adds a strong smoky taste to the liquid within.
You can smoke a regular glass of whiskey, a traditional drink like an Old Fashioned, or any other beverage that comes to mind. The resulting flavor varies depending on the type of wood used, but it adds layers of delicious smokiness to your drink.