1 c. Hellmann's real mayonnaise
2 tbsp. vinegar
1 1/2 tsp. salt
1 tsp. sugar
1/4 tsp. pepper
4 c. cooked, peeled, cubed potatoes (5 to 6 med.)
1 c. celery
1/2 c. chopped onion
2 hard cooked eggs, chopped

In large bowl, stir first 5 ingredients until smooth. Add remaining ingredients; toss to coat well. Cover and chill.