Dosa is a staple food in South India which can be taken for breakfast or dinner and in my case strangely even for lunch. Chennai is known for dosas. Not only Chennai, all around South India but in particular Tamil Nadu. If you want to know the technical details about its composition, here it is: Dosa is a fermented pancake made from rice batter. It is also present in south east Asian places such as Singapore and Malaysia.
|Dosa - Image source: wikipedia.org|
But if you ask me, dosas can be taken with anything such as jam, milkmaid, nutella, paneer butter masala (tandoori dish) and even sugar. The main thing for dosas to be delicious is that they must be fermented, else you won't like it. Chennai's hotels are famed for their hot, crispy but soft dosas. If you ever come to Chennai, do try some of the top south Indian restaurants like Saravana Bhavan, Sangeetha, Vasantha Bhavan etc; There are many hotels in Chennai that serve dosas. These hotels are the most famed. In the current situation and level of inflation prevailing in India, a dosa costs about Rs 40 /- (0.74 U.S $).
In my opinion, the best dosas are made at home. Also, obviously they are healthy and cost-free :P
There are different kinds of dosas available like : Onion dosa, masala dosa (inside would be filled with delicious mashed potatoes), Ghee roast etc;
Do try a Dosa when you come to Chennai. :)