Slow-Cooker Cranberry Orange Pork Roast – Cranberry sauce and the juice and zest of an orange work their tasty magic in the slow cooker so you can come home to a sweet and tart roast pork loin. If you were looking for an entree for your Christmas dinner, look no further. It’s easy to make, but it looks like you’ve spent hours preparing. It doesn’t get much better than that!