Because of the gluten problem, I've baked one to take along, although I've not done the traditional Galette des Rois which has a pastry topping because if I end up the only one eating it, I'll burst!
Taking liberties with tradition is a tricky thing in France as it’s not always a good idea to mess with a good thing, but it is tradition to bake a fève(bean) into the tart and whoever gets the bean (preferably a child – and crafty parents have learned to cut around the pieces to make sure a kid gets the trinket!) gets to be the roi (king) for the day and wear a gilded paper crown that bakeries often give with the galettes.
Well, I just hope I'm not going to offend too many traditionalists but mine doesn't contain a fève either! But there again, every website you read has a different version!