This fruity and refreshing Frozen Strawberry Lemonade is the perfect party guest. It's both tangy and sweet, made with frozen strawberries and lemonade concentrate. Swirl in large glasses for an inviting and cool pool-side treat.
In a small bowl, combine frozen strawberries with sugar and let sit for at least 10 minutes. In a blender, combine frozen lemonade, ice, lemon zest, and ½ cup club soda. Pour into separate pitcher. In the clean blender, combine strawberries and ¾ cup club soda. Layer strawberries and lemon slush in cups. Stir to gently combine. Garnish cups with a lemon slice.