What is the main alcoholic component in a Kir Royale?

The main alcoholic component in a Kir Royale is raspberry liqueur, specifically Crème de Cassis. A Kir Royale is a variation of the classic Kir cocktail, which combines white wine with Crème de Cassis. In the case of Kir Royale, sparkling wine or champagne serves as the base, but the distinctive flavor predominantly comes from the raspberry liqueur. This liqueur adds sweetness and a rich raspberry flavor, making it central to the character of the drink.

While champagne is an important ingredient, its role is more about providing the sparkling base than being the main alcoholic component. The other options—Peach Schnapps and Irish Cream—are not involved in this cocktail at all, making them unrelated to the question about the main alcoholic component of a Kir Royale. Thus, the emphasis is clearly on the raspberry liqueur, which is essential for defining the drink's unique taste profile.