One authentic chile verde recipe is the Authentic Chile Verde (Pork and Green Tomatillo Stew) available on Food.com. In addition, FoodNetwork.com provides its own recipe for Pork Chili Verde.
To make the Authentic Chile Verde recipe from Food.com, sear 6 pounds of cubed pork stew meat on high heat in a large pot in 1/4 cup of vegetable oil until the meat is browned. Next, remove the pork from the pot, leaving approximately 3 tablespoons of oil in the pot. Sauté 2 large chopped yellow onions and 6 cloves of minced garlic until the onions are tender. Add 1 tablespoon of cumin and stir in the browned pork along with 4 1/2 quarts of chicken stock. Simmer the mixture for 30 minutes. Next, seed and chop 8 fresh poblano chiles, 4 fresh jalapeño peppers and 2 yellow bell peppers, and then add them into the pot. In a blender, puree 3 pounds of fresh tomatillos without the tusks and 1 cup of coarsely chopped cilantro leaves. Pour the puree into the pot and cook for another 30 to 45 minutes. This recipe yields about 20 servings and it is recommended to serve this dish alongside Mexican or Spanish rice and refried beans.