Combine all ingredients in a heavy pot. Bring to a simmer over medium heat.
Stir occasionally. Simmer for about 45 minutes or until slightly thickened. It will thicken more as it cools.
Store in an airtight container in the refrigerator for up to a week.
Microwave chilled servings individually for 15 seconds to warm before eating.
I ALWAYS triple this recipe. Everything except the coconut milk and vanilla. I use two cans coconut milk, 2 Tablespoons vanilla extract or vanilla beans, and triple everything else.
If you double or triple the ingredients, you will need to simmer longer, for about an hour, to reach desired thickness.