A refreshing, light Whole30 mocktail that will bring you right back to summertime. It totally works as a cocktail too - just add an ounce of gin or vodka.
In a low ball glass, muddle 2 slices cucumber, 2 blackberries, 3 mint leaves, and lime juice.
If using liquor, add in the gin or vodka.
Fill the rest of the glass with LaCroix. Stir so all the ingredients marry together.
Garnish with 2 mint leaves, a slice of cucumber, lime wedge, and a blackberry.
Sip and enjoy!