Step 1

Boil the potatoes in their jackets until a fork inserted in the thickest portion goes cleanly through. Dice the potatoes into a fairly small dice. I leave the skins on because I love them, but you can peel your potatoes if you'd rather.

Step 2

Heat the oil in a wok or a large saucepan

Step 3

Add the mustard seeds and when they crackle, add the red chili peppers and onions.

Step 4

Saute, stirring frequently, until the onion just starts to turn color

Step 5

Add the ginger and saute a few more seconds. Add the diced bell peppers and ground black pepper.

Step 6

Cook, stirring occasionally, for about five minutes or until the peppers start to soften. Add the potatoes.

Step 7

Let the potatoes cook over medium-high heat until they start to form a crust at the bottom. Stir a few times so they don't stick. With a potato masher or a heavy ladle, mash the potatoes slightly.

Step 8

Season with salt and stir in the lemon juice.

Step 9

Sprinkle the cilantro and mix.

Step 10

Mix the flours, baking soda and salt in a bowl with enough water to make a runny batter. You want something far runnier than a pancake batter because you want to spread it fairly thin.

Step 11

Heat a griddle over medium-high heat. Using a round-bottomed ladle, pour about half a cup of batter into the center of the griddle. Quickly, spread outward in a circular motion with the bottom of the ladle. You want your dosa to be fairly thin if you like it crispy.

Step 12

Sprinkle or spray some oil around the edges. Cook until the top is dry and the edges are browned. Remove to a plate.

Step 13

Place the stuffing inside the dosa, fold over, and serve with chutney.