My mother says, this recipe used to be made in many temples in olden days for naivedyam. Many would not prefer parboiled rice for naivedyam.
Raw rice - ½ cup
Urad dhal - ½ cup
Salt
Coaresely powdered pepper + Jeera - 2 tsp.
Oil - to make dosas
Wash & soak rice & dhal together.
Grind very fine adding salt.
Ferment well.
Just before making dosas, add powdered pepper-jeera.
Mix well & make dosas with very minimum oil.
I prefer to make mini dosas, because that was how the naivedyam dosas looked like, when I ate them !
Serve with any chutney or sambar.