Basundi is an indian sweet mostly in gujarat, maharashtra. It is a sweetened condensed milk made by boiling milk on low heat until the milk is reduced by half. In north india, a similar dish goes by the name rabri. Gujarati basundi is a rich and delicious dessert of thickened milk, very similar to the north indian rabdi. Almonds and pistachios add crunch to this creamy sweet. Remember to keep scraping the sides of the vessel when cooking, as that will make the basundi thick and impart a real creamy texture.