'Tis the season for hosting and what better way to impress your guests than with a delicious treat that will send them into taste haven. Many of us will be enjoying classic Christmas treats this season, from turkey dinners, mince pies, Christmas pudding and more. But before you sit down for your main feast, which can often take a long time to prepare, you might want to serve up some treats for guests to enjoy. Canapes always go down a treat, and one food blogger insists her filled spinach puff