Anchovies really perk up plain wax beans, while celery adds a crisp, clean element to the dish.
Active time: 20 min Start to finish: 25 min
Cooks' notes:
• Vinaigrette can be made 1 day ahead and chilled, covered. Bring to room temperature before using. • Celery can be ribboned 3 hours ahead and kept in ice water. • Beans are best when cooked just before serving but can be boiled 1 day ahead and chilled, covered. Bring to room temperature before dressing.