01 - In a small bowl, whisk together lemon juice, agave syrup, lemon zest, vanilla extract, and turmeric until fully combined and syrup reaches a smooth consistency.
02 - Fill two tall glasses with ice cubes, leaving adequate space at the top for liquid ingredients and garnish.
03 - Pour half of the prepared mock limoncello syrup into each glass over the ice, distributing evenly between servings.
04 - Add 1/4 cup lemonade and 1/2 cup sparkling water to each glass, maintaining balanced proportions for optimal flavor profile.
05 - Stir gently with a bar spoon or cocktail stirrer to blend flavors while preserving carbonation.
06 - Decorate each glass with fresh lemon slices and mint sprigs. Serve immediately while chilled for best presentation and taste.