Heat it up until almost boiling, stirring. Lower heat, cover, and simmer for 1 hour, stirring occasionally. Add vanilla.
Variations: Add a mashed banana or two. This will give it sweetness (so you can reduce the sugar) and give it a banana flavor (duh).
You can eliminate the sugar entirely and sweeten it with Equal after it cools.
Converted to MM by Donna Webster email@example.com