1.
Preheat oven to 425 degrees F and coat a baking sheet with nonstick cooking spray.
2.
Set tomatillos, onion, jalapenos, and peeled garlic cloves on the prepared baking sheet. Roast for about 30 minutes to soften, then pulse together in a food processor until smooth.
3.
Stir water, broth, garlic bulb, cloves, and bay leaves together in a Dutch oven and set over high heat.
4.
When water and broth come to a boil, turn heat down to low. Add chicken breasts to the pot. Simmer for about 18 minutes, until chicken breasts are cooked through.
5.
Lift chicken breasts out of the broth and let cool slightly on a plate. Use forks to shred the meat. Pour the broth through a wire mesh colander into another bowl, and throw away the solids.
6.
Brown chorizo well in the Dutch oven, breaking up into small pieces. Pour off excess fat, then return the broth mixture to the Dutch oven.
7.
Add hominy, lime juice, oregano, cumin, salt, roasted pureed tomatillos and jalapenos, and the chicken. Cook over medium heat until ingredients are warmed through.
8.
Serve sprinkled with cilantro.