Preheat the oven to 350 degrees. Drain the beans and set aside. Heat a large oven safe skillet with the oil over medium-medium high heat. Brown the pork in batches. Remove the pork from the pan. Add additional oil if needed. Add the onions and peppers to the pan. Cook until softened and slightly browned. Add the garlic and cook for 1 minute. Deglaze the pan with the bourbon. Add the spices, chicken stock, tomatoes, beans, and pork to the pan. Bring to a simmer, cover, and place in the oven. Cook for 1 hour. Remove from the oven and place on the stove. Simmer uncovered for 10 minutes. Remove from heat and serve with corn muffins.