This may be old hat for many of you but it was a revelation for me over the 3 weeks that we tripped in Quetico recently.  Ghee is the perfect solution for sauteeing and frying, especially doing fish.  For those of you who don't know, Ghee is clarified butter which means butter from which all the milk solids and most of the water have been removed.  It tastes exactly like butter (because it is) and has an unlimited shelf life which means it won't become rancid over the course of a long trip.  For pancakes or frying fish it is absolutely the best.  If you haven't already I'd recommend giving it a try on your next trip.