Pick through the cranberries and remove any bad ones.
Cut the orange into eights and remove the seeds.
Place half the cranberries and half the orange in a food processor, fitted with the steel blade, and pulse until the mixture is evenly chopped, but not pureed.
Transfer to a medium bowl. Repeat with the remaining cranberries and orange.
Combine all ingredients in bowl and stir in the sugar.
Cover and refrigerate for at least 2 days or up to 2 weeks.
