I adapted this recipe from one by Sahar Sepehri’s mother, Fatemeh Zangeneh. Traditionally this osh is made with bone stock, but I’m giving you a vegetarian version. Tarkhineh is a fermented yogurt and bulgur preparation dried into patties (for adding to a broth later to create a thick soup). It is popular throughout Kurdistan. Variations are also popular in Arak and Khorasan. Ready-made tarkhineh patties can be found at some Iranian markets in