Instructions

1. 1

   Bring 8 cups water, bay leaf, half of onion, half of garlic, and 1 teaspoon salt to a boil, covered, in a large heavy pot, then reduce heat and simmer 10 minutes.

2. 2

   Add chicken and poach at a simmer, uncovered, skimming off any foam, until just cooked through, about 20 minutes.

3. 3

   Transfer chicken to a cutting board to cool. Strain the broth and discard the solids. When the chicken cools shred it with a fork.

4. 4

   Simmer tomatillos and remaining onion in remaining cup water until tender, about 10 minutes.

5. 5

   Drain vegetables and pure in a blender with jalapeos, 1/4 cup cilantro, oregano, remaining garlic, and 1 1/2 teaspoons salt.

6. 6

   Heat oil in a 4- to 5-quart heavy pot over moderately high heat until hot but not smoking, then add pure. Cook, uncovered, stirring frequently, until thickened, about 10 minutes. Stir in the chicken broth and meat and simmer 40 minutes

7. 7

   Serve in large bowls with garnishes.