Raisins, which are dried grapes, are not a common ingredient in cocktails but they do have a unique role in the world of alcohol. They are often used in the production of certain types of homemade liqueurs and infused spirits. The natural sugars in raisins can contribute to the fermentation process, adding depth and complexity to the final product. For example, in traditional Italian liqueurs, raisins are sometimes combined with other dried fruits and spices to create rich, flavorful infusions.

In the context of cocktails, raisins are occasionally used as a garnish or as a flavoring agent in craft cocktails. When used as a garnish, they are typically soaked in a complementary spirit to enhance their flavor and plump up their texture. This can add an unexpected burst of sweetness and a chewy texture to the drink, making it more interesting and visually appealing. Additionally, raisins can be muddled or blended into syrups and bitters, providing a nuanced sweetness and a hint of dried fruit flavor that can elevate the overall profile of a cocktail.