Cranberry Fluff

2 c raw cranberries, ground
1/2 c seedless grapes
3 c tiny marshmallows
1/2 c broken walnuts
3/4 c sugar
1/4 tsp salt
2 c diced unpared apples
1 c heavy cream, whipped

Combine cranberries, marshmallows and sugar. Cover and chill overnight. Add apples, grapes, walnuts, and salt. Fold in whipped cream. Chill before serving.