You can use the fluff from a cattail and water to make dough, also dry accorns, pine nuts, and any other edible roots or nut etc may be ground into flour or flour additives. To make pemmican pound jerky or dryed meat or fish into a powder mix with rendered fish or animal fat, also you can add berries or nuts etc. To rendure the fat boil it and scoop off the fat from the top and all the junk sinks to the bottom. Good luck. Geoff.