I had trouble telling when this was done. It turned out more like a giant butter cookie/shortbread. I think it was supposed to be a bit softer.
I attempted to simulate golden bakers sugar by putting turbinado sugar in a food processor. I assume that it is basically super fine brown sugar or some such thing. At any rate, it worked nicely. Don't be alarmed if the food processor smokes. It's just the sugar, not your machine! Here you can so the turbinado sugar in the cup and the super-fine version in the bowl.