30 minutes before serving the pork, bring the chicken stock to a boil in a saucepan. Slowly whisk in the polenta Turn the heat down to medium low and continue to stir until the mixture thickens. Once the mixture has come together and the cornmeal is thoroughly combined, reduce the heat to low and cover. Cook until the polenta is creamy and resembles the consistency of oatmeal, stirring occasionally, for about 30 minutes. If at any time the polenta looks parched, dry or too thick, add in some extra chicken stock ¼ cup at a time. After 30 minutes, stir in the butter, cheese, salt and pepper. Taste and add more seasoning or cheese if desired.