This crowd-pleasing watermelon lemonade is refreshing and the ultimate summer drink! This recipe yields a huge pitcher, so it’s perfect for summer barbecues, parties, and picnics. Made with fresh lemon juice, simple syrup, and seedless watermelon, it’s exploding with watermelon flavor. Serve with ice cubes, mint, and lemon slices. The Ultimate Summer Drink: Watermelon Lemonade The