Rinse the cranberries (even if they are frozen) in a strainer with cool water, and remove any stems and bad or blemished berries.
In a large saucepan, over medium heat, heat the water, juice and sugar to boiling stirring occasionally.
Continue boiling 5 minutes longer to assure sugar is completely melted, stirring occasionally. Add the cranberries.
Heat back to boiling over medium heat; stirring occasionally.
Put a lid on the saucepan and continue boiling about 5 minutes longer, still stirring occasionally, until you hear the cranberries begin to pop.
Remove the saucepan from the heat, give it a good stir and allow to cool for about 20 minutes.
Pour the cranberry sauce into a bowl or container and allow to completely cool before refrigerating.