1 c. mayonnaise
2 tbsp. vinegar
1 1/2 tsp. salt
1 tsp. sugar
1/4 tsp. pepper
4 c. cooked, cubed, peeled potatoes
1 c. sliced celery
1/2 c. chopped onion
2 hard cooked eggs, chopped

Combine first 5 ingredients. Stir in remaining ingredients. Cover, chill. Makes 5 cups.