We serve brunch around 10:30 on Christmas morning. This gives me time to get the kielbasa into the slow cooker for just a couple of hours, all it needs. I don't have to fuss over the stove while I am trying to get everything to the table.
1-2 packages of Polish Kielbasa
1-2 tsp vegetable oil

Add oil to a large skillet and heat on medium. Cut kielbasa into 2 inch chunks and brown on all sides. Transfer kielbasa to the slow cooker and cook on low for 2 hours.