4 cups cubed peeled potatoes
3 - 6 hard-cooked eggs, chopped
2 celery ribs, thinly sliced
1/4 cup chopped green onions
1/2 cup sour cream
1/2 cup mayonnaise
2 Tablespoons vinegar
2 Tablespoons sugar
1 teaspoon prepared mustard
1/2 teaspoon salt
1/4 teaspoon pepper

Place potatoes in a saucepan and cover with water; bring to a boil. Reduce heat.
Cook for 20-25 minutes or until tender; drain.  Place in a large bowl: add eggs, celery and onions.
In a small bowl, combine the remaining ingredients.  Pour over potato mixture and toss to coat.
Cover and refrigerate for at least 1 hour.

NOTE: I am not too good at planning ahead so this is also good if you do not have the time to refrigerate for the one hour.

Yield:  6 - 8 servings.