01 - In a small bowl, whisk together lemon juice, agave syrup, lemon zest, vanilla extract, and turmeric until fully combined to create the mock limoncello syrup base.
02 - Fill two serving glasses with ice cubes to chill the drinks properly.
03 - Divide the mock limoncello syrup evenly, pouring half into each prepared glass over the ice.
04 - Pour 1/4 cup lemonade and 1/2 cup sparkling water into each glass, maintaining equal proportions for both servings.
05 - Stir each drink gently to blend the syrup with the sparkling water and lemonade. Garnish generously with lemon slices and fresh mint leaves. Serve immediately while cold.