Which ingredient is highlighted in the Rum Bourguignon cocktail?

In the Rum Bourguignon cocktail, the cinnamon stick serves as a key ingredient that enhances the overall flavor profile of the drink. It contributes a warm, spicy aroma that complements the sweetness of the rum, creating a well-balanced taste experience. The infusion of cinnamon not only provides depth but also adds a comforting element that pairs well with the other ingredients typically found in the cocktail. Its prominence is what makes it stand out, elevating the drink from a standard rum cocktail to something more distinctive.