Fresh ginger adds sharpness and complexity to classic margaritas in this refreshing cocktail recipe from Jean Georges bartender Peter Okkerse.
Place salt mixture in a shallow dish. Moisten the rim of a rocks glass with one of the lime wedges and dip in salt mixture to coat; set aside.
Fill a cocktail shaker with ice and add tequila, ginger-lime base liquid, and Cointreau; shake to combine and strain into prepared glass. Squeeze remaining lime wedge over glass and add to cocktail. Serve.