To make the batter – to a large bowl add the ragi flour, rava (semolina), rice flour, onion, green chili, ginger, cumin seeds, curry leaves, cilantro, black pepper and salt. Mix well to combine.
Add the whisked yogurt and 3 cups of water. Whisk to remove any lumps. Cover and set a side for 20 minutes.
After 20 minutes, I added another ½ cup of wate. The amount of water may vary depending on the rava and flour used. The total amount of wtare I used was 3 ½ cups. Basically we are looking for a batter which has the consistency of butter milk.
If you are not sure about the amount of water, make one dosa and depending on how it turned out, you can always add more water.
To make the dosa, heat a cast iron skillet or non stick tava on medium heat. Once the pan is hot drizzle some oil and wipe it off with a paper towel.
Take a ladle full of batter and pour the batter about 6 inches above the pan, this will give us a nice lacey dosa. Pour the batter from outside to inside and fill in any gaps, making sure not to pour the batter on the same spot again.
If there are big gaps, fill those and cook the dosa for 1-2 minutes. Now drizzle some oil on the sides and in the middle. You may want to adjust the heat depending on your stove type.
Ragi dosa will take more time to cook then a regular dosa. Once the dosa looks crispy on the sides, you can use a spatula to loosen it up. Gently remove the dosa and serve with your favorite chutney. You don’t have to cook on the second side, but if you feel the dosa is soft you can certainly cook the other side.