1/2 of a Lime
3 oz. St-Germain
3 oz. Blackberry Vodka
In a cocktail shaker, muddle the berries with St-Germain until the berries are smashed.
Add in the vodka, juice of 1/2 lime wedge and ice and shake. Fill four Chinet Cut Crystal 9 oz. Cups to the top with crushed ice. Divide the cocktail evenly between the four cups.
Top with club soda (about 1/4 cup or more each) and then stir. Garnish with berries and enjoy!