CLASSIC VICHYSSOISE (CHILLED LEEK AND POTATO SOUP)

Steps:

• Combine the leeks, potatoes, milk, and 2 cups water in a 4-quart pot.
• Bring to a simmer over medium-high heat. Add 1-1/2 teaspoons salt, reduce the heat to medium low, and simmer until a potato slice falls apart when you poke it with a fork, about 20 minutes. Remove from the heat, stir in the cream, and let cool briefly.
• Purée the soup with an immersion blender.
• Strain the puréed soup. Let cool to room temperature, stirring occasionally to prevent a skin, and then refrigerate until thoroughly chilled.
• Before serving, thin the soup with water or milk if necessary-it should be the consistency of heavy cream. Serve cold, and garnish with chives.