Run the lemon or lime wedge around the rim of a hurricane-style margarita glass. Dip the rim of the glass into the saucer of salt, rotating the rim in the salt until the desired amount has collected on the glass.
Measure the tequilas, Cointreau, and lemon or lime juice into a 16-ounce glass full of ice. Place a stainless steel cocktail shaker over the glass, tapping the top to create a seal. Shake vigorously for about 5 seconds and pour into salt rimmed glass.
Recipe courtesy of Al Lucero, author The Great Margarita Book