Soak raisins in whiskey overnight. The next day, simmer raisins and whiskey together for 10 minutes. In large sauté pan, render bacon over moderate heat. When bacon is half cooked, add onions, apples, fennel and celery. Cook, stirring frequently, for approximately 10 minutes. Remove from heat, add remaining ingredients. Bake in a covered pan at 350ºF. for 45 minutes.