- Add the lime and sugar to your Collins glass and muddle with a muddler.
- Add the mint leaves and place the flat end of a bar spoon in the glass.
- Fill the glass with crushed ice and pour in the rum.
- Rapidly raise and lower the spoon the thoroughly mix the drink.
- Top with soda.
- Garnish with a sprig of mint, rubbing the leaves before serving to release the bouquet.