The orange and walnuts elevate this traditional holiday relish to a delicious side dish for any feast.
Place half the cranberries and half the orange slices in food processor container. Process until mixture is evenly chopped. Transfer to a bowl. Repeat with remaining cranberries and orange slices.
Stir in sugar. If using, add walnuts.
Store in refrigerator or freezer. This dish is better made the day before you serve it.