Today the classic martini is made with two parts gin to one part dry vermouth and a dash of orange bitters. The Southside is a lesser-known drink with a historic reference going back to the 1920's ...

1. Fill a cocktail shaker with ice. Add the gin, simple syrup and lime juice. Shake until chilled, then strain into a flute. Top with Champagne and garnish with the sprig of mint.