Rinse the fresh cranberries under cold water.
Remove any soft or damaged berries carefully.
Pat them dry with paper towels gently.
Pour orange juice into your saucepan now.
Add sugar and water to the pan.
Stir everything together over medium heat gently.
Toss in all the cranberries at once.
Add the orange zest and cinnamon powder.
Stir the mixture well to combine everything.
Let the sauce simmer for 10 minutes.
The cranberries will start popping loudly soon.
Stir occasionally to prevent any burning issues.
Remove the pan from heat immediately now.
Let it cool for 30 minutes completely.
The sauce thickens as it cools down.