Method:

1. Run lime wedge around the outer rims of 2 rocks glasses and dip rims in salt and set aside.

2. In a cocktail shaker, combine tequila, Cointreau, and lime juice.
3. Fill with ice and shake until thoroughly chilled, about 15 seconds (the bottom of a metal shaker should frost over).
4. Fill glasses with fresh ice and strain margarita into both glasses. Garnish with lime wheels and serve.