The Negroni Cocktail is a classic Italian drink that's perfect for sipping on a warm summer evening. This sophisticated cocktail is made with gin, Campari, and sweet vermouth, and it's usually served on the rocks with an orange peel garnish. The combination of flavors, along with the bitterness of the Campari, makes for a complex and refreshing drink that's hard to forget. In this recipe, we'll show you how to make an authentic homemade Negroni cocktail that's sure to transport you to a chic Italian bar.