Sieve the flours together and mix in the chilli, turmeric, cumin
and salt. Rub in the ghee.
Mash the banana with the sugar & knead into the flour mix,
bit by bit, you may not need all the banana, until a rollable dough
If the dough is too sticky add a little flour or a drop of water
if the dough is dry & crumbly.
Divide into 10 equal balls, dip in flour and roll out into
circles about 10cm wide, shake off any excess flour. Smear a
non-stick frying pan or a griddle with ghee and fry the puris one
at a time until golden on both sides.