Boil, peel and cube 2 pounds russet potatoes; toss with 2 tablespoons cider vinegar and 1/2 teaspoon salt. Mix 2 cups mayonnaise, 2 chopped scallions, 1 chopped celery stalk, 1 tablespoon each dijon mustard and vinegar, 1 teaspoon sugar, and salt. Toss with the potatoes.
Photograph by Kana Okada
Recipe courtesy Food Network Magazine