Raisin-Walnut Waldorf Salad

1/2 cup raisins
1 cup boiling water
4 cups chopped unpeeled red apples
2 celery ribs, thinly sliced
2 tablespoons lemon juice
1 cup (8 ounces) plain yogurt
2 tablespoons sugar-free instant vanilla pudding mix
2 tablespoons sugar, optional
1/2 cup chopped walnuts

In a bowl, combine raisins and boiling water. Let stand for 5 minutes; drain. Combine the raisins, apples, celery and lemon juice; toss.

Combine the yogurt, pudding mix and sweetener if desired. Pour over apple mixture; toss to coat. Cover and refrigerate for 1 hour. Just before serving, stir in walnuts. Makes 6 servings.