Healthy and extremely simple, this variation on the French classic soupe au pistou trades summer beans, squash, and tomatoes for winter cellar staples. Though parsnips, turnips, and celery root are often overlooked, their bright, clean taste and subtle sweetness are the perfect backdrop for the fresh, spicy watercress pistou.
This recipe was featured as part of our Soups with Winter Greens.
For more, see also our easy vegetable soup recipe using pesto.
For the pistou: