Spiced Rice-Potato Dosas

Dosas (or dosai, as it is sometimes written) are like crepes, fine-textured flatbreads made of batter poured onto a lightly oiled skillet or griddle. They’re most often savory and plain, made to be eaten with a curry or a dal and a chutney. The classic dosa is made of dal and rice that are soaked, then ground to a batter that is allowed to ferment a little to leaven it. This dosa is different, quicker to prepare, because the bat