The Cuatro Smash is a delicious mix of Bacardí Añejo Cuatro Rum, St Germain Elderflower Liqueur, Ruby Red Grapefruit Juice, and Tonic Water. The rum and elderflower liqueur provide a smooth sweetness, while the grapefruit juice and tonic water give it a tart and tangy kick. The Cuatro Smash is a relatively new cocktail, having only been created in the last few years. However, it has quickly become a favorite among mixologists and bartenders alike. The combination of smooth rum, sweet elderflower liqueur, tart grapefruit juice, and refreshing tonic water make for a delicious and well-balanced drink. If you're looking for a new cocktail to try, the Cuatro Smash is a great option!