All-American Potato Salad

Bahan-bahan (6 porsi)

• 2 pounds russet potatoes (3 to 4 medium), (peeled and cut into ¾-inch (2-cm) cubes)
• 1 tablespoon + ¾ teaspoon salt, (divided)
• 2 tablespoons distilled white vinegar
• 1 medium rib celery, (finely chopped (about ½ cup/60 g))
• 2 tablespoons minced red onion, (from 1 small onion)
• 3 tablespoons sweet pickle relish
• 2/3 cup mayonnaise, (best quality such as Hellmann’s or Duke’s)
• 3/4 teaspoon dry mustard
• 3/4 teaspoon celery seed (see note)
• 2 tablespoons minced fresh parsley leaves
• 1/4 teaspoon freshly ground black pepper
• 2 large hard-boiled eggs, (peeled and cut into ¼-in (6-mm) cubes, optional)