1 Whole lime, plus 4 oz. fresh lime juice
 1 tbsp Granulated sugar
 1 tbsp Kosher salt
 8 oz Green Card Limited Blanco Tequilla
 2 oz Cointreau
 Ice
 2 oz Fresh blackberries, for serving

Ingredients

 1 Whole lime, plus 4 oz. fresh lime juice
 1 tbsp Granulated sugar
 1 tbsp Kosher salt
 8 oz Green Card Limited Blanco Tequilla
 2 oz Cointreau
 Ice
 2 oz Fresh blackberries, for serving
BlackBerry Margarita