Cajeta is a confection of thickened caramel usually made of sweetened caramelised goat's milk. It is a type of dulce de leche. In Mexico, it is considered a specialty of the city of Celaya in the state of Guanajuato. Cajeta is made by simmering goat's milk, or occasionally a sweetened liquid, stirring frequently, until its viscosity increases due to evaporation of water, and it becomes caramelized. While goat milk is the most usual base, other liquids or juices may be used.