- Soak chana for 9-10 hours. Take a pressure cooker and add chana,water and pressure cook for 6-7 whistles. Boil potato and peel. Take rice flour,boiled and mashed potato and blended chana and mix. Then add red chilli powder,chaat masala,garam masala,salt,chopped coriander,salt and mix well and make a dough. Heat oil, Take some portion of dough and make patties. Then deep fry in oil and serve hot.