Preheat the oven to 350°F. Coat a 9x13 baking dish or casserole with cooking spray. Set aside.
In a large mixing bowl, mix the chestnuts, stuffing mix, celery, raisins, apple, onion, salt and pepper. Pour in the chicken stock, butter and cream and mix until evenly moistened.
Spread the stuffing mixture into the prepared baking dish. Bake for 1 hour.
Remove and allow to rest for at least 20 minutes. Serve with Cumberland sauce.
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Notes
This recipe can be used as a turkey stuffing, but cut in half and do not stuff the bird to the brim. Make sure the internal temperature of the turkey is correct. Since stuffing contains no raw meat, you'll be good to go!