Add remaining ingredients except the club soda to a shaker and fill with ice.
Shake, and fine strain into a double Old Fashioned glass filled with fresh ice.
Top with club soda and garnish with a basil leaf.
1.5 cups Sugar
1.5 cups Hot water
1 Pineapple, peeled and cut into small chunks
PREPARATION: Add sugar and hot water to a bowl and stir until sugar is dissolved. Add pineapple, cover and let sit over night. Strain syrup into a new container, mashing the pineapple chunks to extract more syrup and flavor. Discard the mashed pineapple chunks and keep syrup in the refrigerator.