Potato-Bean Salad with Herb Dressing

Ingredients

• 1 pound potatoes (about 2 medium), peeled and cubed
• 1/2 pound fresh green beans, trimmed and cut into 2-inch pieces
• DRESSING:
• 1/3 cup buttermilk
• 2 tablespoons mayonnaise
• 2 tablespoons sour cream
• 1 tablespoon Creole mustard
• 1 tablespoon minced chives
• 1 tablespoon minced fresh parsley or 1 teaspoon dried parsley flakes
• 1-1/2 teaspoons snipped fresh dill or 1/2 teaspoon dill weed
• 1-1/2 teaspoons cider vinegar
• 1 garlic clove, minced
• 1/2 teaspoon salt
• 1/8 teaspoon celery seed
• 1/8 teaspoon pepper