Popsugar Living Fast And Easy Easy Watermelon Lemonade Recipe The Best Thing to Do With Leftover Watermelon June 30, 2015 by Anna Monette Roberts View On One Page Photo 5 of 10 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 5 Fill Remaining Space With Lemon Juice Then taste! It's probably very tart, but some watermelon is incredibly sweet. It just depends. Previous Next Start Slideshow Fast And EasySummerParty PlanningRecipesWatermelonLemonadeSummer Food