Cranberry Whip

2 C cranberries
2 C miniature marshmallows
2 C crushed pineapple, drained
1/2 C granulated sugar
1 C whipping cream, whipped, or 2 C Cool Whip
chopped pecans or walnuts (optional)

Grind cranberries in a food processor or blender. Mix cranberries, marshmallows, pineapple, sugar and nuts (if using) and refrigerate overnight. Fold in whipped cream or Cool Whip.