I love Christmas. Because let’s face it when else does pretty much everyone launch a menu full of cranberry sauce, cheese (Omg brie!), pigs in blankets, cinnamon spiced everything and boozy hot drinks?! Now you hear me! One of my fave Christmas menus has to be a burger one. I’m usually impartial to a seriously cheesy, beef number, with cranberry and all the trimmings. Ultimately, not the person who usually orders a chicken burger (I know, I know, its the closest thing to turkey but still, I’ve had bad experiences). But that was until I tried the Xmas Shack at Shake…