Looking for a twist on a classic summer drink? How about added some watermelon to your lemonade for some extra flavor at your next picnic! This Watermelon Lemonade recipe is simple and easy to make. The recipe below will allow you to make one mason jar sized glass for you to enjoy in under three minutes. Or use the whole watermelon and more lemon juice or lemonade to easily make a pitcher of Watermelon Lemonade for the entire family to enjoy.