Muddle the mint leaves with the simple syrup in a glass, add 1 big rock of ice, then add the Rhum Barbancourt 5 Star and lime juice. Complete the cocktail with club soda and Angostura bitters.
5 Star Old Fashioned
Mix sugar, water and bitters in an old fashioned glass. Drop in a cherry and an orange wedge. Muddle into a paste using a muddler or the back end of a spoon. Pour in rum, fill with ice cubes, and stir.
Muddle fresh kumquats, falernum, and orange bitters in a shaker then add Rhum Barbancourt 5 Star and ice. Shake vigorously and pour into a rocks glass. Garnish with lime zest.
In an old fashioned glass, muddle the fruits with the orange liqueur and honey. Add in three large ice cubes and pour in Rhum Barbancourt 5 Star. Stir and serve.