Place 12 mint leaves, 1/2 part sugar, and 1/2 lime in a glass. Muddle well with a pestile. Add rum, top off with club soda, stir well and garnish with sprigs of mint or a lime wheel.
Flavored rums can be used to add a little extra flavor. Substitute Coconut, Apple, Raspberry, Orange, Limon, Peach, or Melon flavored rum for traditional white rum.