Early in a trip, I bring foods that aren’t much different than what I might eat at home. Because (1) I don’t carry the first day’s food very far (better to have super-light and no-fuel foods at the end of a trip because that stuff gets carried the furtherest) and (2) I like to transition over a few meals from around-town food to trail food – I get fewer lower-GI issues if my diet doesn’t change abruptly (YMMV and possibly TMI).
So I like tortilla wraps. No crumbs. Can’t break. Tortilla, cream cheese, hard cheese, cold cuts and/or bacon, maybe some spinach in the first one and kale in the others. Easy to eat on the trail. However slowly you hike while eating, you’re making more miles than you would in camp. That might be the first meal in warm weather. It could be the first two lunches and a trail dinner in cool weather.
My no-water, no-cook breakfast is oatmeal cookies. Oatmeal, raisins, sugar, butter, maybe chocolate chips – all stuff that you might cook into a breakfast in camp, but I warm up faster while hiking than while standing around a stove at dawn waiting for water to boil so I can make oatmeal. Cook your own. Buy store-bought. Whatever. I like these:
