Potatoes are nature’s comfort food, magically working to create a smooth and creamy base in this very green Scandinavian soup. Watercress lends a welcome freshness while dill and buttermilk bring zip.
If watercress isn’t available, beet greens, spinach, or Swiss chard can be substituted.
Per serving:
In large pot, melt butter or oil over medium heat. Add potatoes, onion, and garlic. Sauteu0301 for 10 minutes. Add broth and pepper, bring to a boil, reduce to a simmer, cover, and cook for 12 to 15 minutes, until potatoes are tender. Add watercress and cook until wilted, about 1 minute. Remove from heat; add buttermilk or kefir, dill, and vinegar. Pureu0301e with an immersion blender until smooth. Serve hot with a swirl of additional buttermilk.