01 - In a sturdy glass or cocktail shaker, gently muddle the mint leaves with freshly squeezed lime juice and simple syrup until fragrant.
02 - Pour cranberry juice into the muddled mint mixture and stir until fully integrated.
03 - Fill two serving glasses generously with ice cubes.
04 - Evenly divide the cranberry-mint base between both glasses.
05 - Top each glass with chilled sparkling water or club soda and stir gently to blend flavors.
06 - Adorn with lime slices, fresh cranberries, and mint sprigs. Serve immediately for optimal refreshment.