The Secret is in the ingredients. Don’t just buy one of those Margarita mixes from the supermarket and add tequila. Try these steps instead.
Take a cocktail shaker and fill one-third with crushed ice. Add 1 ounce of tequila. (Blanco).
Add 2.5 ounces of Sweet and Sour mix. Remember this is not the margarita mixes you see in the shops but the sweet and sour bar mix. You can even make your own, here is a link to my recipe. http://www.bukisa.com/articles/24042_how-to-make-sweet-and-sour-mix
Add juice of a small freshly squeezed lime.
Add a splash of Triple sec and then shake vigorously.
Pour contents into a margarita glass and serve.