SERVES: 6 | PREP TIME: 10 minutes | COOK TIME: 8 hours Ingredients 1½ pounds (680 grams) tomatillos 1 medium red onion, sliced 2½ pounds (1.2 kg) boneless, skinless chicken breasts 4 cloves garlic, minced 1 jalapeño pepper, minced (seed if desired for less heat) 1½...
