Cold Avocado Corn Soup With Cilantro Oil

A refreshing chilled soup that combines charred corn, creamy avocados, and spicy serrano chile, finished with a drizzle of homemade cilantro oil and Mexican crema. Perfect for hot summer days.

6 servings
2 hr 7 min

Ingredients

  • 1 ear fresh or frozen ear of corn, shucked
  • 4 cups water
  • 1 clove garlic
  • teaspoons salt
  • cups white onion
  • 1 whole fresh serrano chile
  • 2 whole firm-ripe California avocados
  • 3 tablespoons fresh lime juice
  • ¼ cup crema or sour cream
  • 1 cup fresh cilantro
  • ¼ cup olive oil
  • ½ teaspoon salt
  • 1 piece melon-ball cutter

Cooking Instructions

  1. 1.

    Roast corn on rack of gas burner over high heat, turning occasionally with tongs, until kernels are charred in spots, 4 to 5 minutes. (Alternatively, heat a dry well-seasoned cast-iron skillet and roast corn over moderately high heat, turning occasionally, about 10 minutes.) Transfer corn to a cutting board and, when cool enough to handle, cut kernels from cob with a sharp knife, then cut cob into thirds.

    10 min

  2. 2.

    Bring kernels, cob pieces, 4 cups water, garlic, salt, and 1/2 cup onion to a boil in a 3-quart saucepan and boil until liquid is reduced to about 3 cups, about 20 minutes. Remove from heat and cool, uncovered. Discard cob pieces.

    20 min

  3. 3.

    Purée corn mixture along with chile and remaining 3/4 cup onion in a blender, then pour through a fine-mesh sieve into a bowl, pressing hard on and then discarding solids. Return broth to cleaned blender.

    10 min

  4. 4.

    Quarter, pit, and peel 1 avocado, then add to blender with 2 tablespoons lime juice and purée until smooth. Transfer soup to a bowl and cover surface with plastic wrap. Cover bowl with plastic wrap and chill soup at least 1 hour.

    60 min

  5. 5.

    Purée cilantro, oil, and salt in cleaned blender, scraping down sides of blender several times. Pour oil into cleaned fine-mesh sieve set over a bowl and let drain 15 minutes (do not press on solids). Discard solids.

    15 min

  6. 6.

    Halve and pit remaining avocado and scoop small balls from flesh with melon-ball cutter, then toss gently with remaining tablespoon lime juice in a bowl.

    5 min

  7. 7.

    Whisk together crema and remaining 2 tablespoons water in a small bowl until smooth.

    2 min

  8. 8.

    Season soup with salt and ladle into 6 shallow soup bowls. Divide avocado balls among bowls, then drizzle with crema and cilantro oil.

    5 min