Leek Potato Soup

Directions

1. 1
   Watch how to make this recipe.
2. 2
   Chop the leeks into small pieces.
3. 3
   In a 6-quart saucepan over medium heat, melt the butter.
4. 4
   Add the leeks and a heavy pinch of salt and sweat for 5 minutes. Decrease the heat to medium-low and cook until the leeks are tender, approximately 25 minutes, stirring occasionally.
5. 5
   Add the potatoes and the vegetable broth, increase the heat to medium-high, and bring to a boil. Reduce the heat to low, cover, and gently simmer until the potatoes are soft, approximately 45 minutes.
6. 6
   Turn off the heat and puree the mixture with an immersion blender until smooth. Stir in the heavy cream, buttermilk, and white pepper. Taste and adjust seasoning if desired.
7. 7
   Sprinkle with chives and serve immediately, or chill and serve cold.