Got to get some disposable towels.

Now this is pure perfect campfire food!

http://www.seriouseats.com/2015/08/l...alt-crust.html

My wife is Colombian, and at this point I've been to the country often
enough that I've gotten accustomed to its eating culture, aware of its
most classic dishes and regional specialties. So I was pleasantly
surprised when, on my most recent visit, her family suggested we try
lomo al trapo, a preparation I'd never heard of.* Literally translated
as "beef tenderloin in a towel," it's made by wrapping a big chunk of
beef tenderloin in a thick crust of salt swaddled in a towel, tying it
up, and throwing it directly on a fire until it's cooked.

It's one of the easiest, most foolproof, primally delicious, and
downright impressive methods of cooking beef I've ever seen. I flat-out
guarantee that every single one of your guests will be floored. All it
takes is three ingredients, a few basic kitchen supplies, and a fire. No
pots, pans, or even a grill required.