The chicken is placed on a beer can in a rack and then placed in the smoker. The beer steams it from within while the heat and smoke browns the outside.
The
famed
Beer-Butt
chicken
sitting
on
a
rack
which
contains
a
half-full
beer
can.
The
beer
steams
inside
the
chicken
while
the
BBQ
heat
cooks
it
from
the
outside.