1. Fill a serving pitcher halfway with ice, place the orange slices around the sides, pour remaining ingredients into the pitcher, give it a gentle stir, and serve.

2. For a single serving: In a wine glass or champagne flute, combine 1/3 cup chilled sparkling water, 1/3 cup chilled orange juice, and 1/3 cup chilled kombucha. Garnish with an orange slice and serve.