Raise the heat to high and continue to cook until the mixture thickens slightly, about 5 minutes.

Reduce for 20 to 25 minutes, stirring occasionally, until mixture has thickened.

Bring to a boil, lower heat and allow to simmer 30 to 35 minutes until mixture has thickened.

With the machine running, slowly add the oil until the mixture thickens.

Stir over medium heat 3 to 4 minutes, until the mixture thickens.

Cook for three minutes or longer, stirring occasionally, until the mixture thickens.

Reduce the heat, and continue stirring until the mixture thickens.

Boil until the mixture has thickened slightly, about 10 minutes.

Cook until mixture thickens slightly, 15 to 20 more minutes.

The mixture should thicken to about the consistency of yogurt.