Dosa is a famous South Indian breakfast dish. Dosa is also served as a street food. Dosa is a naturally fermented, gluten-free food which is considered to aid good digestion. As batter is fermented overnight, dosa is rich in vitamins. They are also high in carbohydrates with no sugar or saturated fats. The black grams makes it a good source of protein.
If you can easily prepare a nutritious food at home then why depend on store-bought ones. Take a few minutes of your weekend to prepare the batter, ferment and prepare the most nutritious food for breakfast. Refrigerate the remaining batter for evening or the other day.
Lots of variations can be made using the same dosa batter, but here I am giving the recipe for a simple plain dosa.
You can find the detailed instructions at
http://myeatingspace.com/dosa-from-south-india-the-fermented-crepes/