In a Perfect Bourbon, how much sweet vermouth is used?

In a Perfect Bourbon, the correct amount of sweet vermouth to use is indeed 1/2 oz. This classic cocktail typically consists of bourbon, sweet vermouth, and dry vermouth, combining them in equal proportions. The purpose of including sweet vermouth is to provide balance and a hint of sweetness that complements the richness of the bourbon.

By incorporating 1/2 oz. of sweet vermouth, alongside an equal measure of dry vermouth, the cocktail achieves a harmonious blend of flavors without overpowering the bourbon. Each element plays a crucial role in rounding out the drink, making it both refreshing and complex.

Therefore, understanding the precise measurements is vital for achieving the intended taste profile in this cocktail.