Reduce heat to low and cook for 2 minutes longer.
Cover, reduce heat to very low, and cook for 15 to 20 minutes.
Then reduce the heat to low, cover and cook for 1 hour.
Reduce the heat and continue to cook 2 minutes more.
Reduce the heat to low and cook for 5 minutes.
Cover, reduce the heat to low and cook for 2 minutes.
Reduce heat and continue cooking for a few minutes longer or until done.
Cover, reduce the heat to low, and continue cooking for about 30 minutes.
Reduce the heat and continue cooking for about 2 minutes longer.
Add the oil, and reduce the heat to medium high.