Stir broth, soy sauce, ginger, sherry, orange zest and honey in large pot until honey dissolves. Add pork, potatoes, scallions, chiles, garlic, star anise and cinnamon sticks. Stir well and bring to a simmer over medium-high heat.
Cover, reduce heat to low and simmer slowly until pork is meltingly tender, stirring occasionally, about 2 hours. (Alternatively, stir all these ingredients in slow cooker, cover and cook on low about 8-9 hours.)