Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
2 1/2     lb            Cubed unpeeled round red potato, (8 Cups)
1/2       c             Diced purple onion
1/2       c             Diced celery
1/4       c             Chopped fresh chives
3/4       c             Nonfat sour cream alternative
1/3       c             Nonfat buttermilk
1/4       ts            Salt
1/2       ts            Ground pepper
1 1/2     ts            Cider vinegar
2         oz            Crumbled blue cheese, (1/2 cup)

Preparation:

Place potato in a Dutch oven; cover with water, and bring to a boil. Cook 8 minutes or until tender. Drain and place in a large bowl. Add onion, celery, and chives; toss gently.

Combine sour cream and next 4 ingredients; stir well. Stir in cheese. Pour over potato mixture; toss gently to coat. Cover and chill.