Ingredients

5 cups ice cubes 

3/4 cup tequila, preferably silver 

2/3 cup fresh lime juice (from 5 to 6 limes) 

1/2 cup Simple Syrup for Frozen Margaritas 

1/3 cup coarse salt 

1 lime wedge, plus more for serving 

Preparation

Puree ice, tequila, lime juice, and simple syrup in a blender until smooth. Pour salt onto a saucer, and moisten the rims of 4 glasses with lime wedge. Dip each glass into salt, and fill with margaritas. Serve with lime wedges.