The bad news is we had to make the dried cranberries ourselves. The good news is it was easy pretty easy and they're delicious (albeit a little tart).
We did the dehydrating using the Nesco Professional Food and Jerky Dehydrator. It's a nifty little device for drying fruits, vegetables and meats. It also makes amazing kale chips (recipe coming) and fruit leather.
The cranberry skin needs to be punctured for the fruit to dry completely. Stab each berry with a knife before starting the dehydration. Set the temperature to 135 degrees and dehydrate overnight or until desired consistency is reached. Store them in a clean, dry container.