Wash the rice for two or three times and rinse it.
Pout the rice into a pot.
Cover the rice with water.
Add oil and salt and mix it with the rice.
Let it cook for 1 hour until all the water is absorbed.
Notes
Uniqop's advice:
Clarified butter makes tastier Kateh.
No matter how much is the amount of your rice. To cook Kateh cover the rice with water up to one phalanx height and add some oil and salt.
If you cook the last
After one hour, pour some oil and brewed saffron to a pan and pout the mostly cooked rice into the pan. After 10 minutes flip the pan into a dish. You'll have a Kateh with saffron crunch rice crust.