Bar chef Chad Phillips of The Social Club in Miami Beach, Fla., revamped this classic rum cocktail. Get your protein as you sip on your happy hour drink: a mixture of rum, lime juice, vanilla simple syrup, mint leaves, bitters, and an egg white. Garnish with a mint leaf and you're good to go!
Shake all ingredients. Strain into coffee glass. Garnish with a mint leaf and Angostura bitters.