Soak the lentils and rice for 2
hours. Grind coarsely with the chilies then mix in
the coconut, potato, coriander, asafoetida and salt
and mix to a thick batter.
Heat a heavy-based pan and
smear with oil. Pour a ladleful of batter into the
pan and spread to a 15cm/6 in circle.
Pour a
spoonful of oil around the edges and cook for about
2 minutes until each side is golden. Serve hot with
coconut chutney.