Buttermilk Waldorf Salad

1 cup boiling water
1 cup buttermilk
1 - 3 ounce package lemon jello
1 apple, cored and chopped
1/4 cup celery
1/4 cup chopped nuts

Dissolve jello in water. Add buttermilk and partially chill. Add in remaining ingredients, lightly mix and then pour into mold. Chill until firm. Unmold.