12 c. boiled potatoes, cut up (new red potatoes work best; boil with skins on)
8 hard cooked eggs, chopped
1/4 c. celery, chopped
1 med. sized onion, chopped
3 c. mayonnaise
1/4 c. mustard
1/4 c. sugar
1 tsp. salt
1/4 tsp. pepper
1 tbsp. vinegar
1/2 c. half and half cream

Mix all ingredients together; chill.