Jamon de belota, the good stuff. Bad jamon is the most horrible experience but the good stuff when cut well is sublime.
Black footed chicken. They are raised in forests where they forage for food. They are scrawny and big boned, the meat is a little darker then a common chicken but now I only eat chicken if it can be one of these beauties.
Chorizo. Once you have tasted the real thing it will be clear.
Olive oil. Albaquina is liquid gold.
Eggs, real eggs! Until you have eaten one there is no way to explain the difference but they are a wonder food.