In a large bowl, whisk cornbread mix, pudding mix and milk until blended. Add eggs, molasses and spices; whisk until combined. Transfer to a greased 4- or 5-qt. slow cooker. Cover and cook on high for 1 hour., Reduce heat to low. Stir pudding, making sure to scrape sides of slow cooker well. Cover and cook until very thick, 2-1/2 to 3 hours longer, stirring once per hour. Serve warm, with ice cream or whipped cream if desired.