Ingredients
4 medium leeks, trimmed and washed as directed opposite, sliced 1/8 inch thick (about 3 cups)
2 large Yukon Gold potatoes, peeled and sliced 1/8 inch thick (about 4 cups)
2 cups whole milk
Kosher salt
1 cup heavy cream
1 Tbs. thinly sliced fresh chives, for garnish
Preparation
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 tsp. 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, preferably using a regular blender and working in batches, filling it only half way each time.
Strain the puréed soup through a fine sieve. Let cool to room temperature, stirring occasionally (stirring prevents a skin from forming), and then refrigerate until thoroughly chilled.
Before serving, thin the soup with water if necessary-it should be the consistency of heavy cream. Season to taste with salt. Serve cold in chilled bowls, garnished with the chives.
