Pour all of the ingridients into a cocktail shaker with ice and give it a good shake.
Serve in a glass filled with crushed ice and garnish with a wedge of lime.
Notes
For a fruitier margarita reduce the Triple Sec to 15 ml and add 15 ml of freshly squeezed fruit juice. Passion fruit, pineapple and grapefruit are three of my favourite flavours.