Trevelez, the origen of the Serrano Ham, here called Jamon de Trevelez, there are many possibilities to visit the bodegas where the hams are hanging to dry in the fresh mountain air. Try the chorizos as well, you can buy all their products, you can even get it sent home.
Tha gastronomy is mostly pork products, trouts from the rivers, their local vine, and the typical bread and moorish recipes of sweets.
Dry figs, and sweets made of figs, almonds and local honey, you must try them, and the famous Soplillos, see the recipe on my blog.
There are many posibilities to stay a night or two, have a look at these sites : Turismo Pampaneira
Hotels, Casas Rurales, Apartments and I can recomend a very nice hotel we stayed in, Hotel La Alcazaba de Busquistar ( their web site is under construction) Tel.958 858 687 , very nice staff, fine food, indoor pool and spa, good value for the money.