Add all ingredients except the club soda into a shaker with ice and shake.
Strain into a highball glass over fresh ice.
Top with club soda and garnish.
Garnish with a raspberry.
*Raspberry syrup: In a bowl or other large container, muddle 1 12-oz pack of frozen raspberries and 25 oz simple syrup (one part sugar, one part water). Let stand for 12 hours at room temperature. Strain and refrigerate before using.