Mezcal Sour 1½ oz. fresh lime juice 1½ oz. Mezcal 1 oz. Amaro Montenegro 1 tsp. light agave nectar 1 large egg white Angostura bitters and lime twist (for serving) Shake lime juice, mezcal, amaro, agave, and egg white in a cocktail shaker (or in a tightly lidded 1-qt. glass jar) until frothy, about 1 (more…)