HomeBrew2
Banned
I've done this method several times over the years too. It really is a good party trick. Though I like mustard, you could use anything that's thick enough to hold the salt (I use rock salt). I make my own chili sauce from dried pods and expect to try the roast with it this year. The way it appears to me is that the salt is the insulator that keeps the roast from burning up. I liken it to blackening fish or meat where you pack on chili powder or paprika/cayanne or whatever else then pan fry on high heat ... the thick dry spice acts as an insulator. Thyme works pretty good and has a nice smoke smell. BTW, I've used [internally] fatty roasts with no prob but have trimmed most external fat. I've only done mine in a campfire after accumulating a lot of coals ... it takes quite a bit longer cuz of no lid.