01 - Rinse the cranberries thoroughly, removing any soft or discolored berries.
02 - In a medium saucepan, combine water, orange juice, granulated sugar, grated orange zest, cinnamon stick, and a pinch of salt. Bring to a simmer over medium heat, stirring until the sugar dissolves.
03 - Add the cranberries to the saucepan and cook, stirring occasionally, until they burst and the sauce thickens, about 10 to 12 minutes.
04 - Remove from heat, discard the cinnamon stick, and allow the sauce to cool to room temperature; it will thicken further as it cools.
05 - Transfer the sauce to a serving dish or an airtight container and refrigerate until ready to serve.