In a shaker half filled with ice, pour in the Strawberry-Garnacha (click for recipe), basil leaves, lemonade and St. Germain. Shake vigoursly until mixed. Strain into a mason jar filled with ice. Garnish with a basil leaf.
Sparkling water or club soda may be substituted for St. Germain. Do not shake the water or soda, rather splash top of drink and then garnish with basil leaf.