Muddle the Blueberries and Basil: In the cocktail shaker, muddle the blueberries and basil leaves together until the blueberries are crushed and the basil is fragrant.
Add the Liquids: Pour in the lemon juice, simple syrup, and vodka. Fill the shaker with ice cubes.
Shake It Up: Secure the lid on the shaker and shake vigorously for about 15-20 seconds.
Strain and Serve: Strain the mixture into glasses filled with ice. Top up with club soda.
Garnish and Enjoy: Garnish each glass with a sprig of basil and serve immediately.
Make Your Own Simple Syrup
To make simple syrup, combine equal parts sugar and water in a small saucepan. Bring to a boil, stirring until the sugar is dissolved. Remove from heat and let cool. Store in a refrigerator for up to a month.
Serving Suggestions
Glassware: Serve in highball glasses for a classic look, or in mason jars for a rustic touch.
Garnish Options: Along with basil, consider adding a few whole blueberries or a lemon twist.