Ingredients

  • 3 pounds red boiling potatoes
  • 2/3 cup olive oil
  • 1 garlic clove
  • 1/4 cup red-wine vinegar
  • 1 tablespoon fresh rosemary leaves or 1 teaspoon crumbled dried, plus rosemary sprigs for garnish
  • 1 red onion, halved lengthwise and sliced thin lengthwise
  • 2 pounds green beans, trimmed and cut into 1-inch pieces
  • 24 Kalamata or Nicoise olives, pitted and halved

Method

  • Halve the potatoes, unpeeled, and cut them into 1-inch wedges.
  • In a large roasting pan heat 1/3 cup of the oil in the middle of a preheated 425F.
  • oven for 5 minutes, add the potatoes, tossing them to coat them with the oil, and roast them, stirring them every 10 minutes, for 30 minutes, or until they are tender.
  • Let the potatoes cool in the pan.
  • In a blender puree the garlic, the vinegar, the rosemary leaves, and salt to taste, with the motor running add the remaining 1/3 cup oil in a stream, and blend the dressing until it is emulsified.
  • In a small bowl of ice and cold water let the onion soak for 5 minutes, drain it well, and pat it dry.
  • In a kettle of boiling salted water boil the green beans for 5 minutes, or until they are crisp-tender, and drain them in a colander.
  • Refresh the beans under cold water and pat them dry.
  • In a very large bowl combine the potatoes, the onion, the green beans, and the olives, add the dressing, and toss the salad gently.
  • Serve the salad, garnished with the rosemary sprigs, at room temperature.