Buttermilk Vichyssoise with Watercress
This chilled soup is traditionally garnished with fresh chives. We added the peppery snap of watercress and the tang of buttermilk to give it bite.
Recipe information
Yield
serves 6
Ingredients
Preparation
Step 1
Melt the butter in a stockpot over medium-low heat. Add the leeks, and cook, covered, until tender, about 15 minutes.
Step 2
Add the potatoes, stock, and 2 cups water. Bring to a boil; simmer until the potatoes are tender, about 20 minutes. Cool completely; stir in 2 cups of the watercress.
Step 3
Working in batches, puree the soup in a blender until smooth. Transfer the pureed soup to a large bowl. Season with salt and white pepper. Stir in the half-and-half; chill at least 1 hour. Add the buttermilk just before serving. Adjust seasoning; if necessary, thin the soup with a bit more chicken stock or water to achieve the desired consistency. Garnish with the remaining cup watercress leaves.