Fill the cocktail shaker with ice cubes and then add the cranberry juice. Squeeze and add the lime to the shaker. Add the vodka and the Cointreau and shake vigorously for 30 seconds.
Pass the cocktail through a strainer and serve immediately.
«Make sure to squeeze the lime well and then add the fruit to the shaker, the zest will add flavour to your Cosmo! Try serving with a lemon or lime twist.»