Place all the ingredients in the slow cooker, except for the pork roast, and mix until thoroughly combined.
Press the pork roast pieces into the mixture and cook on low until pork is fork tender. (6-7 hours)
Remove the pork from the slow cooker. Let the pork cool enough to handle, and separate the pork using 2 forks. Add the pork back into the slow cooker and continue cooking until pork is heated through.