Baked German Potato Salad Recipe VEGETARIAN (without bacon) •12 medium red potatoes (about 3 pounds) •2 medium onions, chopped •3/4 cup packed brown sugar •2/3 cup water, divided •1/3 cup white vinegar •1/3 cup sweet pickle juice •2 teaspoons dried parsley flakes •1 teaspoon salt •1/2 to 3/4 teaspoon celery seed •4-1/2 teaspoons all-purpose flour