The traditional masala chai is a spiced beverage brewed with different proportions of warming spices. The spice mixture, called Karha, uses a base of ground ginger and green cardamom pods. Other spices are usually added to this base or karha. For example, most masala chai found on the street, in restaurants or in homes incorporates one or more of the following along with ginger and cardamom, namely: cinnamon, star anise and/or fennel seeds, peppercorn, nutmeg and cloves. In the Western world, using allspice, to either replace or complement the cinnamon and clove, is also common. Traditionally, cardamom is a dominant note, supplemented by other spices such as cloves, ginger, or black pepper; the latter two add a heat to the flavour and the medicinal aspect of the drink. The traditional composition of spices often differs by climate and region in Southern and Southwestern Asia.