Key Lime Margaritas

Ingredients

• 2 teaspoons superfine granulated sugar 
• 1  key lime quartered
• 0.5 cup key lime juice fresh
• 0.5 cup reposado tequila 
• 0.8 cup cointreau orange-flavored

Equipment

• blender

Directions

1. Run a lime wedge (if using) around rim of each of 4 (6-to 8-ounces) glasses. Put salt (if using) on a small plate and dip glasses in salt to lightly coat rims.
2. Blend liqueur, tequila, juice, and sugar (if using) in a blender until combined.
3. Serve over ice (in coated glasses).