James Martin: Home Comforts: Home-Cooked Treats

James shows how every night can be a treat night with some great home-cooked recipes that can turn a mundane meal into something special. There's cinnamon rolls, roast lamb with homemade mint jelly and luxurious vanilla-cured salmon. Food historian Gerard Baker reveals the history behind a traditional treat - the trifle - and there's a trip to the Dorset flourmill producing some of the region's award-winning organic flour.