The elderflower liqueur St. Germain is only 80 calories per ounce and has just 18 percent sugar by volume (compared to the 30 to 35 percent found in many liqueurs). It's also all-natural, and gluten-free. It's a win win win!
2 parts dry white wine or crisp Rosé wine
1 ½ parts St. Germain
2 parts club soda
Dash of Angostura bitters
Directions: Stir ingredients in a tall ice-filled Collins glass, mixing completely.