This can be eaten for breakfast, with oatmeal and milk or yogurt, or as a dessert.
Combine in a large saucepan:
Bring to a boil over medium-high heat, then reduce the heat and simmer, stirring gently, for 5 minutes. Stir together in a small bowl:
Stir the cornstarch mixture into the berry mixture and cook, stirring until thick, about 3 minutes. Cool, then refrigerate until chilled. If desired, serve drizzled with: