The Southside: The Bright, Minty Gin Sour Built for Summer

The Southside is what you get when a Gimlet and a Mojito have a very elegant child. It is a gin sour - gin, lime, and sugar - lifted with a generous handful of fresh mint, shaken hard and served ice-cold. The result is bright, herbaceous, and about as refreshing as a cocktail can be, a pale green-tinged drink that tastes like a garden in a glass. Simple to make and impossible not to like, it is one of the great warm-weather gin cocktails and deserves to be far better known than it is.

A little history

The Southside dates to the early twentieth century, and like many gin cocktails it flourished during American Prohibition. Its exact origin is disputed - some credit New York’s 21 Club, where it became a house drink; others point to Chicago’s South Side, whose bootleg gin was reputedly rough enough to need mint and citrus to make it palatable, much like the Bee’s Knees and its honey. Wherever it came from, it settled into the canon as a refined, minty gin sour, and it has quietly held its place ever since as a favourite of people who know their classics.

The drink is essentially a Gimlet (gin, lime, sugar) with mint added, or a Mojito made with gin instead of rum and no soda. That simple lineage is exactly why it works.

The recipe

• 60ml gin
• 22.5ml fresh lime juice
• 22.5ml simple syrup (equal parts sugar and water)
• 6 to 8 fresh mint leaves
• A mint sprig, to garnish

Method. Add the gin, lime juice, simple syrup, and mint leaves to a shaker with plenty of ice. Shake hard for 10-15 seconds. Double strain (through the shaker strainer and a fine sieve) into a chilled coupe, to catch the shredded mint. Garnish with a fresh mint sprig, gently slapped to release its aroma.

The result is a pale, faintly green, cloudy sour with a fresh mint aroma - clean, cold, and bracing.

The technique that matters

The Southside lives on fresh mint, and how you treat it decides the drink. You want to extract the mint’s bright, fresh aroma without releasing the bitter, grassy compounds that come from over-bruising it. So do not muddle the mint aggressively - simply adding the leaves to the shaker and shaking hard with ice is enough to release their oils cleanly. The ice does the work, tearing the leaves gently as you shake.

The double strain is what separates a good Southside from a scruffy one. Shaking with mint leaves shreds them, and you do not want green flecks and stalks in the finished drink. Straining through a fine sieve gives you a clean, elegant coupe. Slap the garnish sprig between your palms before adding it - that releases a burst of mint aroma right under the drinker’s nose.

Common mistakes

Over-muddling the mint. Aggressive muddling releases bitter, vegetal notes. Let the shake do the work instead.

Skipping the double strain. Nobody wants mint shreds in their teeth. Fine-strain for a clean drink.

Bottled lime juice. As with any sour, fresh lime is essential - bottled tastes flat and dull.

Getting the balance wrong. The classic equal measure of lime and syrup is a good start, but taste and adjust: bright and balanced, not too tart, not too sweet, with the gin and mint both clearly present.

Variations worth knowing

Add a splash of soda and serve it long over ice and you have a Southside Fizz or Southside Rickey - even more refreshing, and lower in strength for a hot afternoon. Serve it up in a coupe for the elegant version, or over crushed ice for a more casual, Mojito-like drink. A dash of Angostura bitters on top adds a subtle complexity some drinkers love. Whichever way, it scales up beautifully into a jug for a summer gathering.

The verdict

The Southside is one of the most refreshing gin cocktails there is, and one of the easiest to love. It asks for nothing exotic - gin, a lime, some sugar, and a handful of mint - and rewards you with a bright, cool, herbaceous drink that suits a warm evening perfectly. The only technique it demands is a gentle hand with the mint and a fine strain at the end. Master those and you have a garden-fresh classic you will come back to all summer. If you like a Gimlet or a Mojito, the Southside belongs in your repertoire - it is the best of both, and it deserves far more attention than it gets.