The dosa has got to be one of the India's best street foods. In a place that seems to have invented, or at least perfected the concept of having a quick bite outside, that's pretty high praise.

What you get with a dosa is a thin, enormous crepe folded up to enclose various fillings. The most common variety, the masala dosa, has an outer crepe made of rice and lentil flours. The flours have been fermented overnight, so they have a nice tang that complements the filling: boiled potatoes and onion spiced with mustard seeds, turmeric, curry leaves, and chilies.

Typically, as in the photo above, your dosa will come with a sweet coconut chutney and a small bowl of sambar, a vegetable and lentil soup. The chutney comes in handy for taking away a bit of the heat.