Ingredients

2 pounds red potatoes, scrubbed well and cut into 3/4-inch pieces

Coarse salt and freshly ground pepper

2 tablespoons white-wine vinegar

1 teaspoon Dijon mustard

3 tablespoons extra-virgin olive oil

3 ounces crumbled goat cheese (1/2 cup)

1 celery stalk, finely chopped

1 small shallot, finely chopped

2 tablespoons finely chopped fresh flat-leaf parsley

Preparation

Cover potatoes with water in a medium saucepan; season with salt, and bring to a boil. Reduce heat, and simmer until tender, 10 to 12 minutes. Drain, reserving 1 tablespoon cookingliquid. Let potatoes cool for 5 minutes.

Whisk together vinegar, mustard, and reserved cooking liquid. Add oil in a slow, steady stream, whisking constantly until emulsified.

Transfer potatoes to a bowl, and drizzle with vinaigrette. Gently stir in goat cheese, celery, shallot, and parsley. Season with salt and pepper.