Mar 04, 2020 · Using a pastry brush, brush the prepared balsamic mixture all over the pork loin. Cover the slow cooker with the lid and cook on LOW for 4 to 5 hours, or on HIGH for 3 hours. Rest and Serve: Remove the pork loin from the slow cooker and transfer to a cutting board. Cover the pork loin with foil and let it rest for 10 to 15 minutes before slicing. 1 Smithfield Marinated Roasted Garlic & Herb Pork Loin Filet (approx 2.5 lbs.) 4-6 large carrots, cleaned and cut unto thirds 6 small-medium yellow potatoes, cleaned and cut into fourths 3 pears, cleaned and roughly chopped 1 medium onion, diced 1 cup chicken broth salt and pepper (optional)