Southside is a classic cocktail made with gin, fresh mint leaves, lime juice, and simple syrup. It is a refreshing and minty drink, perfect for summer sipping.
Southside recipe
Pour all ingredients into a cocktail shaker, shake well with ice, double-strain into chilled cocktail glass

The Southside sits in the same refreshing family as a gin sour, but mint gives it a cooler, cleaner finish. London Dry gin brings juniper and citrus peel, lemon adds sharp brightness, and the syrup rounds it out. When egg white is included, the texture becomes silkier and slightly more plush without changing the flavor much.
This is an excellent aperitif cocktail: light, brisk, and polished. It works especially well in warm weather, at garden parties, or anywhere a Martini might feel too severe. Because it is served straight up, dilution matters, so shake thoroughly but serve at once.
The exact origin is a bit uncertain. The most repeated story links the drink either to Chicago’s South Side during the Prohibition era or to East Coast private clubs such as New York’s 21 Club. The most credible takeaway is that it emerged as an early-20th-century gin-and-mint sour with strong pre-Prohibition or Prohibition-era roots.
For a non-alcoholic take, use a juniper-forward alcohol-free spirit in place of gin. Shake it with lemon, simple syrup, and mint exactly the same way, then double-strain into a chilled glass. You keep the bright herbal snap and refreshing structure, just without the alcohol.