What beer is made from corn?
There is Chicha, Andian beer made with a maize called jora. http://en.wikipedia.org/wiki/Chicha
Supposedly in the early part of the 20th century, around Western Kentucky, they brewed a corn beer using a large kernal type of field corn
There is tesguino, a ceremonial brew made in Chihuahua, Mexico.
I see recipes online for brewing your own corn beer
Is there any corn beer that is sold commercially? Most reports compare it to tasting like apple cider.