If you like a sweeter cocktail, add a sugar cube to each glass along with the bitters.
Ingredients
12 tablespoons elderflower liqueur (St. Germain)
12 lemon twists
12 champagne flutes
Bitters
2 bottles champagne or prosecco, chilled
Instructions
Add 1 tablespoon of the liqueur and 1 lemon twist to each of 12 champagne flutes. Add one drop of bitters to each glass. As guests arrive, fill each glass with champagne or prosecco and enjoy.
Recipe by How to Decorate at https://www.ballarddesigns.com/howtodecorate/2013/12/recipe-annette-josephs-champagne-cocktail/