Different Potato Salad

Source: Just Recipes

6 Potatoes
1 c Chopped onions
1/4 c Vinegar
1/2 c Prepared mustard
Salt & pepper to taste
2 Eggs, hard cooked
1 c Chopped hearts of celery
1/2 c Mayonnaise

Boil and chop potatoes. Add onions, celery, salt and pepper. Separate egg whites and yolks. Chop whites into potato mixture. Mix yolk with vinegar, mashing yolk to dissolve. Add mustard and mayonnaise, mixing thoroughly. If too thick, add more vinegar to form sauce and pour over potato mixture.