Mix all the dry ingredients together in a large bowl. Add the wet ingredients and whisk to make a batter with the same consistency as dosa batter . You make the batter very thin as for rawa dosas, I made mine a little thick since my son prefers it like that.
Drizzle the dosa tawa with oil or ghee. Pour a ladle of batter and spread it as you would for a regular dosa. When the sides begin to cook, flip the dosas over and cook on both sides.
The dosas should be a light brown. Serve with chutney or a dip of your choice.