Indian curry recipe

Here's my curry recipe (all seasonings can be adjusted to taste):

1 medium sweet potato, peeled and cut into chunks
1 medium onion, cut into chunks
1 tsp curry powder
1 pinch of hot pepper flakes
Water or vegetable broth
1 Heaping tbs of cornstarch mixed with a little cold water to form a thin paste

"Saute" the onions in a wok or large frying pan until soft.  Add the sweet
potato and seasonings.  Stir until the curry powder forms a paste on the
vegetables, adding more liquid if necessary.  Add enough liquid to _almost_
cover the sweet potato and bring to a boil.  Reduce the heat, cover and simmer
for about 15 minutes or until the sweet potato is tender.  Thicken with the
cornstarch paste.  Enjoy.