What spice is used as a garnish in the Chai This cocktail?

The correct answer is cinnamon, which is commonly used as a garnish in the Chai This cocktail. Cinnamon not only enhances the flavor profile of the drink, complementing the spice blend typically found in chai tea, but it also adds an aromatic quality that enriches the overall drinking experience. The warm, sweet taste of cinnamon pairs well with other spices and complements the creamy components of the cocktail, making it a fitting choice for garnish.

On the other hand, while cardamom is a key ingredient in chai, it is not commonly used as a garnish in cocktails. Basil and thyme are herbs that typically wouldn't relate to the traditional chai flavor and are less relevant in this context. Therefore, cinnamon stands out as the ideal spice for this specific cocktail garnish, aligning perfectly with the flavors associated with chai.