The French 75 was created in 1915 at the New York Bar in Paris---later Harry's New York Bar---by barman Harry MacElhone. The combination was said to have such a kick that it felt like being shelled with the powerful French 75mm field gun, also called a "75 Cocktail", or "Soixante Quinze" in French. The French 75 was popularized in America at the Stork Club in New York. An elegant drink with Gin and Champagne with a great kick its a drink that was enjoyed by the upper class elite both men and women. Shades of Downton Abbey all that is needed is lace gloves or an ascot.
With the exception of the Champagne, pour all ingredients into a shaker glass filled with ice. Shake well. Strain into a Collins glass filled with ice and top with Champagne. Garnish with a twist.