2 lbs. boneless pork shoulder, cut into 3/4-inch pieces
1 can (16 oz). corn, drained
1/4 tsp. cayenne
1 bunch cilantro, chopped, divided
1 tsp. cumin
3 garlic cloves, minced
1 green bell pepper, chopped
2 medium onions, finely chopped
4 poblano chilies
1 1/2 tsp. salt
3 serrano chilies, seeded and minced
2 lbs. tomatillos, husked, rinsed, and each cut into quarters