3 cl of Lemon Juice
1/8 liter of jamaican dark rum (or Dark rum)
8 drops of Angostura bitters
1/2 handful of mint
1/8 liter of club soda (or clear soda)
Place mint leaves with lemon juice in a collins glass, and mash the mint with a spoon. Add ice, rum and fill up with club soda. Top with angostura bitters, and serve.