Preparation time: 10 minutes, plus 2 to 3 hours chilling
Cooking time: 50 to 60 minutes
Yield: 6 servings
4 medium leeks
1 small onion
2 tablespoons butter
3 cups chicken broth
1 1/2 pounds potatoes (about 3 medium)
Salt to taste, about 1/2 to 3/4 teaspoon
1/8 teaspoon white pepper
1 1/4 to 1 1/2 cups cream or half-and-half
Chopped chives
- 
Thinly slice the white part only of the leeks. Discard the green portion. 
- 
Thinly slice the onion. 
- 
In a large pot over medium-low heat, melt the butter. 
- 
Add the leeks and onion. 
- 
Sauté, stirring occasionally, until lightly golden, about 10 to 15 minutes. 
- 
Peel and thinly slice the potatoes. 
- 
Add the broth and potatoes to the pot. 
- 
Increase the heat to medium and bring to a boil. 
- 
Simmer, partially covered, until the potatoes are tender, about 25 to 30 minutes. 
- 
Puree the soup in batches in a food processor or blender until smooth. Alternatively, if you have a hand blender, leave the soup in the pot and blend. 
- 
Transfer the soup to a large bowl. 
- 
Add salt to taste and pepper. 
- 
Thin with cream and stir to blend. 
- 
Chill thoroughly, at least 2 hours. 
- 
Serve garnished with chopped chives. 


