To be sure, the Yarn Harlot herself, Stephanie Pearl-McPhee, calls it a very UNoriginal hat. Me thinks her tongue is firmly placed within the cheek. It is a grand cabled pattern that works up in two movies flat. The pattern is available free via her website. Look down the right side lists. Of course, it is also on Ravelry if you happen to be hooked on that particular site.
Worked here in a discontinued yarn (Crystal Palace Labrador) you can see that the bulkiness of the yarn is controlled by the cable pattern. The pattern clearly specifies a bulky fat warm wool. The result is not bulky nor is it fat upon the head. It is, however, quite warm. Worn in 71 degree southern California April, sweat appears within minutes.
It fits quite securely with just a bit of give on a rather medium size noggin - not too tight as to pop up unexpectedly. The unoriginal hat covers the ears and grasps down about the nape of the neck. Surely it will be worth having watched two sappy movies when the daughter wears it in New York in the winter. I'm told it gets cold there.
The pattern, in true Harlot style, calls for DPNs. In truth, it works up easily on a 16" circular - so don't rush out looking for new needles if you already have a bulky hat sized circular.