Poblano Vichyssoise with Lime

Total Time:
1 hr 10 min
30 min
40 min

about 10 cups

  • 1 pound baking potatoes, like russets (about 2)
  • 5 cups water
  • 4 medium leeks
  • 1 medium onion, chopped
  • 1 tablespoon unsalted butter
  • 2 teaspoons salt
  • 2 cups milk
  • 2 cups half-and-half or light cream
  • 3/4 pound poblano chile peppers (about 4 large), roasted, procedure follows
  • 1 cup sour cream
  • 1/4 cup fresh lime juice, or to taste
  • Garnish: halved lime slices
  • Peel and dice potatoes and in a bowl combine with water. Discard dark green tops of leeks and chop remaining leeks. In another bowl, soak leeks in water to cover, agitating occasionally to dislodge any sand, 5 minutes. Lift leeks out of water and drain in a colander.

  • In a heavy kettle cook leeks and onion in butter over low heat, stirring occasionally, until leeks are softened. Add potatoes with water and salt, and simmer, covered, until potatoes are very soft about 40 minutes. Add milk and half-and-half or cream and bring just to a boil, stirring.

  • In a blender, puree soup with half of the chiles in batches until smooth, straining as pureed through a very fine sieve into a large bowl, and stir in sour cream and lime juice. Chill soup, covered, until very cold and up to 1 day.

  • Cut remaining chiles into small dices. Serve soup garnished with lime slices and remaining diced chiles.

  • To roast peppers: Using a long-handled fork, char peppers over an open flame or on a rack set over an electric burner, turning, until skins are blackened, 4 to 6 minutes. (Alternatively, broil peppers on rack of a broiler pan under preheated broiler about 2 inches from heat, turning every 5 minutes, for 15 to 20 minutes, or until skins are blistered and charred). Transfer peppers to a bowl and let stand, covered, until cool enough to handle. Keeping peppers whole, peel them, starting at blossom end. Cut off tops and discard seeds and ribs. (Wear rubber gloves when handling chiles.)

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