01 - Combine diced mango, grated ginger, lime juice, honey or agave, and 1/2 cup cold water in a blender. Blend until completely smooth and uniform in texture.
02 - Pour the blended mixture through a fine mesh sieve into a pitcher or bowl, pressing with a spoon to extract liquid while removing fibrous ginger and mango pulp.
03 - Fill two serving glasses with ice cubes to chill the mocktail properly.
04 - Divide the strained mango-ginger puree evenly between the two glasses, filling each approximately halfway.
05 - Top each glass with chilled sparkling water and stir gently to combine the flavors.
06 - Decorate with fresh mango slices, lime wedges, or mint sprigs if desired. Serve immediately while cold and effervescent.