2 oz Gin (or cognac)
1⁄2 oz Simple syrup
1 oz Lemon juice
2 oz Champagne (float)
Shake, strain, straight up, flute, top with champagne or dry sparking wine
Named after the 75mm Howitzer artillery piece. Very good with Prosecco. Light and bright.
1 oz simple syrup and omit St Germain