Blackberry Shrub Mocktail

"Did you enjoy one too many glasses of margarita over the 4th? It’s time to rehydrate. This sparkling blackberry shrub mocktail is my favorite refresher! ⠀⠀⠀⠀⠀⠀⠀⠀⠀ All you need to make the fruit shrub are fresh berries, sugar, and apple cider vinegar. The resulting drink is a little sweet, a little sour, and it kinda tastes like kombucha!"