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.