French 75 is a classic cocktail made with gin, lemon juice, simple syrup, and Champagne. It was named after the French 75mm field gun used in World War I.
French 75 recipe
Combine gin, syrup, and lemon juice in a cocktail shaker filled with ice. Shake vigorously and strain into a chilled champagne glass. Top up with champagne. Stir gently.

The French 75 drinks like a sparkling gin sour: dry, citrusy, and brisk, with a sharp edge softened by sugar and lifted by Champagne. It feels more elegant than heavy, with a clean botanical backbone and a celebratory finish. Despite its light appearance, it can be deceptively strong.
This cocktail is best very cold and served straight up. A flute helps concentrate the bubbles and keeps the sparkling wine feeling focused rather than loose. Use cold sparkling wine and a chilled glass; if either is warm, the drink loses its snap quickly.
The most widely repeated origin story links the drink to the French 75 field gun used in World War I, supposedly because the cocktail hit with similar force. Exact authorship is a bit murky, but the drink is strongly associated with early 20th-century bar culture in Paris, especially the Harry’s New York Bar orbit. However it began, it became one of the enduring Champagne cocktails of the classic canon.
For a non-alcoholic version, shake alcohol-free gin with lemon and syrup, then strain into a flute and top with chilled non-alcoholic sparkling wine or dry sparkling lemonade. Keep the sweetness restrained so it still feels sharp and refreshing rather than soft and soda-like.