Step 1Mix together the flour, cream of wheat, rice flour, cumin, onion, chile, optional ginger, 1 cup of water and the salt, adding more water by the 1/4 cup as needed to form a very thin batter.
Step 2Lightly spray a nonstick griddle or frying pan with cooking spray and heat it over medium-high heat. Spread 1/4 cup of batter at a time thinly on the griddle, working from the center outward, in a circular motion as described for Sada Dosa. Spoon some oil around the edges and cover. When the dosa is cooked through and crisp, about 2 minutes, flip it over and fry the other side, 1 minute, adding more oil as necessary. Serve hot with Coconut Chutney.