As there is a rush on geese around Christmas, it's best to order early. Although more and more supermarkets now stock geese, online retailers come with the advantage of pre-ordering and delivery.
When picking delivery dates, it's worth considering whether the goose can be stored in a home refrigerator or freezer. While a chest freezer should be fine, a stand-up freezer might not accommodate a 6kg goose. Defrosting guidelines should be on the packaging, but a good rule is that a frozen goose will defrost around the rate of 3-4 hours per kg in a cool room (17°C). So if you can arrange the delivery of a 6kg frozen goose 24 hours before it needs cooking, then there won't be any need to create room in the fridge or freezer. Make sure that the giblets are removed from the goose's cavity and put in the fridge. And, of course, that the "defrosting room" is cat-, dog- and fox-proof.
A small goose comes in at 4.5kg and will feed four people. A goose weighing 5 - 5.5kg will feed six to eight people, and an extra-large goose weighing 6kg will feed eight or more.
The traditional way to cook goose is to roast it – a process which will take at least a couple of hours - until the skin is crispy and the meat is cooked through. Cooking times are affected by the size of the bird and whether or not it is filled with stuffing. Negotiating the large quantities of fat that emerge from geese during roasting is a key point to remember - Martin Wishart's roast goose recipe presents a thorough guide to removing fat, basting the bird and achieving beautiful crispy skin.
There are alternative methods which cut-down cooking times. Adam Byatt, for example, reduces oven time by just cooking the crown, and Simon Rogan minces the goose meat to make goose and chestnut chipolatas.
Goose legs and thighs should be slowly braised. The goose fat can be rendered after roasting or braising – skim away any impurities, strain the liquid through muslin, then store the goose fat for making confit goose leg or the ultimate roast potatoes.
Goose is quite a rich and gamey bird, therefore fruit sauce is a great accompaniment. Apple sauce, plum sauce or even a festive cranberry sauce sit happily alongside goose on the plate. Don't shy away from Medieval sweet fruits either like prunes, figs, currants, chestnuts or dried apricots, for a traditional twist.