Ingredients

  • 1/2 lb fresh tomatillos, husks discarded and tomatillos rinsed and quartered
  • 3 fresh green serrano chiles, coarsely chopped (including seeds)
  • 1/4 cup chopped white onion
  • 3 garlic cloves, quartered
  • 3/4 teaspoon salt, or to taste
  • 1/2 cup water
  • 2 tablespoons vegetable oil
  • 3 tablespoons finely chopped fresh cilantro
  • 1 to 2 tablespoons vegetable oil
  • 12 (4-inch) corn tortillas (see cooks' note, below)
  • 1 cup shredded cooked chicken (from 1 chicken breast half)
  • 2 to 3 tablespoons crema or creme fraiche
  • 1/3 cup finely chopped white onion
  • 1/3 cup finely crumbled queso fresco (Mexican fresh cheese)

Method

  • Puree tomatillos, chiles, onion, garlic, salt, and water in a blender until smooth.
  • Heat oil in a 10-inch heavy skillet over moderate heat until hot but not smoking, then carefully add tomatillo puree (oil will splatter) and simmer, stirring, until thickened, 8 to 10 minutes.
  • Stir in cilantro and simmer 1 minute.
  • Transfer to a small bowl.
  • Put oven rack in middle position and preheat oven to 200F.
  • Heat 1 tablespoon oil in cleaned dried skillet over moderate heat until hot but not smoking, then briefly cook tortillas, 3 at a time, until softened and hot but still pale, about 10 seconds per side, adding more oil if necessary.
  • Transfer tortillas with tongs to paper towels to drain briefly, then to a large shallow baking pan in oven to keep warm, arranging tortillas in one layer (overlapping slightly if necessary) and covering pan with foil.
  • Spread each warm tortilla with about 1 teaspoon salsa, then top sparingly with a few shreds of chicken.
  • Thin crema with a little water and drizzle over chicken, then sprinkle with onion and cheese.
  • Serve immediately.