I find this interesting, that all gold on earth was created in space. In a ultra-rare supernovae no less. So all gold on earth, has been splattered on earth as debris. And most gold on earth, has long settled into the bowels of earth, never to be recovered.
So the simplest answer to How is gold made? is still supernovae. It has been reported that the dominant source of the r process elements are Type II Supernovae with progenitor masses between 20 and 40 solar masses. But it is not certain if one or more of the above processes are necessary or if the supernova itself creates the r process elements.
There are a couple of specific supernovae scenarios that can create r process elements. One case involves a star with about 10 solar masses at the time of the supernova. Such a supernova gets two chances to create r process elements: in the prompt supernova explosion or in a neutrino driven wind that follows.