cool_nameThe key is high carb dinners the night before. People seem to think carbs is some kind of dirty word, but at the end of the day they are what will keep you going the longest
this made me laugh...carbs only do you good until you deplete your glycogen levels, then you're fucked. fat is what will keep you going the longest. the inuits travel great distances through harsh arctic climates, surviving on little more than pemican. pemican is essentially bits of jerky encased in a large amount of rendered fat.
i wont get into the science of it, but if anyone is actually interested, theres a documentary called running on fat. its based on elite endurance athletes, and discusses the dangers of a high carb diets for athletes.
so to rephrase my last post, eat steak/bacon and eggs, put a bunch of butter in your coffee, and maybe bring an avocado as a snack. with a good fatty breakfast, you can ski for quite a while without eating. most days that one avocado would most likely be sufficient for your lunch, although eating more certainly wouldn't hurt either.