波本威士忌
Vanilla extract is the most common form of vanilla used today. Madagascar, Mexican, Tahitian, Indonesian, and Ugandan vanilla beans are the main varieties used today. The term "Bourbon vanilla" refers to the vanilla beans' provenance as being from the Bourbon Islands, most commonly Madagascar but also Mauritius and Réunion. The name comes from the period when the island of Réunion was ruled by the Bourbon kings of France and has no relation to Bourbon whiskey.