Step 1

Combine all the ingredients in a medium sized saucepan and bring to a boil.

Step 2

Lower heat to maintain a very soft boil and cook for 8-10 minutes, stirring occasionally. The berries will start to pop and the sauce thicken. Mash as desired while stirring (if you'd like a smoother sauce, use an immersion blender before storing the sauce and it will gel a bit like canned jellied sauce).

Step 3

Transfer sauce to a lidded container and store in the refrigerator for up to a week before serving (the sauce thickens even more as it cools). Serve either cold or at room temperature.