This may be a Cuban drink, but we use our favourite rum, Barbados Mount Gay Eclipse when making it. You could substitute Mount Gay XO, but stay away from spiced or flavoured rum as it will throw off the flavours that this drink is known for. Ingredients: 1/2 a lime 3-5 sprigs of mint 1 tsp coconut or superfine sugar 2 oz Mount Gay Eclipse Rum Soda Water Pull the mint leaves off the sprigs and drop into the bottom of the glass. Add sugar. Use a muddler or a close approximation to gently mash the mint leaves and the sugar together. This process should just bruise the leaves, releasing the mint oil. Squeeze the juice from a half lime into the glass. drop the shell into the glass. Crush or shave some ice (I drop about 4-5 cubes in the blender) and add to the glass. Pour your rum in and top with soda water. Add a straw and enjoy!