Kir Royale is a French cocktail consisting of crème de cassis and Champagne. It is a modern version of traditional Kir which is made with crème de cassis and white wine. Just like regular Kir, the Royale variety is also served in a flute glass without garnishes, usually as an apéritif. If the cocktail is made with raspberry liqueur instead of crème de cassis, it is then called Kir Impérial.