Combine all ingredients in slow cooker. Cover and cook on high for 6-8 hours until the meat easily falls apart. Transfer pork to a bowl using a slotted spoon; remove orange halves and onion and throw away. Pour the broth into a small saucepan and simmer until thick and syrupy (about 10 minutes). Preheat oven to broil setting. Break each piece of pork in half; add reduced broth. Season with salt and pepper; if desired. Spread pork onto a cooling rack set over a rimmed cookie sheet and place on a lower-middle rack. Broil until top of meat is well browned (not charred) and edges are crisp; about 5 minutes. Turn meat over and broil until browned on other side; about 5 minutes. Serve with warm tortillas, Simply Salsa™, shredded lettuce, sour cream ... whatever you like! Makes 6-8 servings.