Pemmican is the original survival food of the north. You can keep it for years
without refrigeration but it is nutritionally complete. Unlike dried cookies or modern
energy bars it does not spike sugar and deprive you of nutrients.
Fur traders and native americans would put a block of Pemmican in their bag and they had something that kept them going when there was
no other foods. Pemmican was the enabler of the fur trade in north of Canada and wars have been fought over it.
You can actually still buy ready made Pemmican at https://www.mitsoh.com/
The taste is a bit unusual. It's a mixture of all flavors which speaks to the fact that
just eating Pemmican for days does not cause any deficiencies.
For a day-trip in the Canadian winter you pack 5 of those Pemmican Strips and a water bottle.
It's extremely light and it gives you what you need.
Pemmican is made from dried meat, tallow and dried berries. Spices and smoking is optional.