Pemmican

Native Americans produced something called pemmican by drying bison meat and berries, once dried turned it into powder form  stored for a very long time (one video said that 'it will outlast you'). Pemmican was a major source of food in America, the white-man jumped into its trade naturally, through different companies.

Funny story here is the competition got out of hand and certain factions fought a war over pemmican. Brits had to step in and merge the two companies.

How to Make It

http://www.traditionaltx.us/images/PEMMICAN.pdf