About Watermelon Gin Slushies Recipe : Watermelon Gin Slushies are refreshing and fruity cocktails perfect for hot summer days. Made with fresh watermelon, gin, lime juice, and a touch of sweetness, these slushies are a delightful blend of flavors. The watermelon provides a natural sweetness and a vibrant pink color, while the gin adds a subtle botanical note. Serve these slushies at your next backyard barbecue or pool party for a cool and refreshing drink that will impress your guests.