I don't know if it is the best recipe for Christmas, but one that in my opinion never fails is stuffed pork loin, with nuts and baked apples. Everyone who has tried it has told me that it is a true delight, to make it you should simply use these ingredients
A pork loin (1.5 kg approx.)
Nuts (almonds, walnuts, prunes)
green apples
Herbs such as thyme and rosemary
White wine
Honey or brown sugar

and then the preparation is

Filling: Mix the nuts with apple pieces and season them with honey, cinnamon, and a touch of salt.
Loin: Open it, stuff it and tie it with kitchen twine.
Baking: Cook with white wine and aromatic herbs at 180°C for 1.5 hours.