Ingredients

  • 1 1/2 lb Yukon Gold potatoes
  • 1 1/2 tablespoons cider vinegar
  • 1 3/4 teaspoons salt
  • 3 oz sugar snap peas (1 cup), trimmed
  • 1 medium carrot (3 oz), quartered lengthwise (or halved if thin), then cut crosswise into 1/3-inch pieces
  • 3 (1-inch) radishes (3 oz total), cut into 1/8-inch-thick matchsticks
  • 1 celery rib, cut crosswise into 1/4-inch-thick slices
  • 1/2 cup low-fat buttermilk dressing
  • 1/4 cup low-fat sour cream
  • 1/2 cup loosely packed fresh cilantro sprigs
  • 3 tablespoons chopped fresh chives
  • 1/2 teaspoon black pepper

Method

  • Peel potatoes and cut into 1/2-inch cubes.
  • Cover by 1 inch with cold water in a 2-quart heavy saucepan and simmer, uncovered, until just tender, 10 to 12 minutes.
  • Drain, then transfer to a medium bowl and toss with vinegar and 1/4 teaspoon salt.
  • Cool potatoes to warm.
  • Blanch sugar snaps and carrot with 1 teaspoon salt in a 1 1/2- to 2-quart saucepan of boiling water 1 minute.
  • Drain vegetables in a sieve and rinse under cold running water, then pat dry.
  • Cut sugar snaps diagonally into 1/3-inch pieces.
  • Add carrot, sugar snaps, radishes, and celery to potatoes in bowl.
  • Pulse dressing, sour cream, herbs, pepper, and remaining 1/2 teaspoon salt in a blender until herbs are finely chopped.
  • Add to potato mixture and stir to coat.