First dry roast the urad dhal till brown and keep aside to cool.Now roast the rice till brown and keep aside. Then once cool powder it in small mixer with cardamom into a corse powder. Keep it aside on a plate. Then powder the sugar and mix both and roast it for one mix again. Now take little by little powder and pour ghee to little portion and make balls out of it, make sure you do not mix the ghee fully at one go the balls will not form if cooled. We can get 8 to 10 balls with this quantity.
