kahlua pig

3 lb pork butt
2 Tbs (about) alaea hawaiian sea salt (or kosher salt)
kitchen twine
banana leaves
foil
water
Place pork in a shallow pan and let come to room temperature (about 1 hour).  Cut deep slits 1" apart across the top and bottom of the pork with a sharp knife.  
Rub the salt over the entire pork.  Wrap in banana leaves, one leaf at a time..in 3 layers.  Tie with kitchen twine.
Wrap in foil in 2 layers.
Line the bottom of a heavy oven safe pot with a piece of banana leaf.  Place 2 1/2 cups of water in the bottom and then lay the foil package on top. Cover with lid and place in preheated 350 oven.  After 2 hours check and see if the water has evaporated..if so, add a bit more.  Do not immerse the package in water...it should be working more like a steam than a boil.  This will take about 5 hours.  Ours was finished after about 4 1/2 hours.  Remove the foil package from the pan and place in a shallow pan. In the foil packet will be melted pork fat and juice.  Shred the pork and serve.  I suggest adding back in some of the pork juices/fat that will have accumulated in the packet....it will taste much more authentic.  However the meat is just as juicy without it..but will be lacking a bit of the buttery flavor.