Blueberry Smash (adapted from Bon Appetit)
2 lemons, sliced into rounds
2 limes, sliced into rounds
1 1/2 cups fresh blueberries
1/ cup fresh mint leaves
1 1/2 cups vodka
1 cup St-Germain
Place the lemons, limes, blueberries and mint leaves in a pitcher. Coarsely mash - I found a whisk worked well for this job. Stir in vodka, St-Germain and 2 cups ice cubes.
Divide drink among glasses; add ice to each glass. Finally top each glass with a healthy splash of club soda.