Although barely qualifying as a cocktail (and strictly speaking a High Ball), as the ingredients are so simple, the result of mixing Cola with Lime and a quality Cuban Rum is far more than the sum of the parts.
A lime wedge completes the Cuba Libre cocktail.
Fill up the glass with lots of crushed ice.
Churn the contents of the glass.
Taste the cocktail and if necessary adjust the balance with a touch of extra sugar or citrus juice.
Garnish the cocktail with a lime wedge.