Put beans in a saucepan, add water to cover by 3 in. and bring to a boil. Remove from heat, cover and let soak 1 to 2 hours. Or, if time permits, put beans in a bowl, add water to cover by 3 in. and let soak 6 to 12 hours. Drain well.

Heat oil in a 5-qt or larger Dutch oven or heavy-bottomed pot over medium heat. Stir in chiles and onion and cook, stirring occasionally, 8 minutes or until soft. Stir in chili powder and garlic and cook 1 minute until fragrant.

Stir in pork, beans, tomatillos, broth and salt. Bring to a boil, reduce heat, cover and simmer 1 1/2 hours or until pork and beans are tender. Stir in corn and cilantro; heat through. Garnish servings with cilantro.