I learnt to make this rawa dosa from my friend umita venkataraman and then made a wrap with some roast shredded chicken i keep handy in the fridge--just roasted with plain salt so that i can use it any which way i want . I umita's words, there’s no soaking, no grinding and no waiting required. The basic rule of thumb is 3 parts sooji to 1 part maida and 1 part rice flour. The maida holds the dosa together and the rice flour gives it crispiness. I prepare the chicken filling earlier and just before dinner i fry the dosa and wrap it up with the filling like an omelette.