1 tablespoon cornstarch diluted in 2 tablespoons cold water
In a saucepan heated to medium heat, add all the ingredients (except the corn starch mix) and stir. Bring to a boil, reduce to low heat and simmer for 15 minutes, stirring.
Add the cornstarch and stir. Continue cooking for about 2 minutes or until mixture thickens. Remove from heat and let cool completely before putting in pots. Can be stored for 1 to 2 weeks in the fridge!