In some cooking circles, cast iron gets a bad rep - people think it's old-fashioned, heavy, and hard to take care of. And really, how often do folks nowadays need to hitch up a mule and wagon and leave civilization and Teflon-coated saut pans behind? True, cast iron is old; it's been around since the Middle Ages. And it is heavy. No one can dispute that even a small, cast-iron pot has a heft to it that no other cookware has. Nevertheless, cast-iron...