This delightful Italian Greyhound cocktail is perfect for gatherings, offering a refreshing blend of flavors that will impress your guests. The combination of gin and grapefruit juice creates a vibrant drink that's both bitter and sweet, while the addition of Campari adds a touch of complexity. Ideal for warm weather or social occasions, this big-batch recipe ensures you won't be stuck making individual cocktails. Prepare this easy and colorful drink in advance and enjoy a hassle-free experience. Serve over ice with a slice of grapefruit for a beautiful presentation, and watch your friends enjoy this modern classic. With the right balance of ingredients, this cocktail is sure to become a staple at your gatherings. Just mix, chill, and serve!