Basically flour and water for Damper. No yeast required. You can add raisins or tinned fruit. Best cooked in a camp oven on an open fire.
You could probably just eat the dry ingredients and leave the rest to the alcohol and nature. It would give a whole new meaning to the term "bun in the oven".
I found flour in bulk at a bulk health foods store outside of town. It was nice, as they had a LOT of variety from which to choose. Local stores still have some in limited quantities, too. Yeast was hard to find, so when I did, I got a bunch of packets. I couldn't find a bottle of it. I also got soem baking powder while I was at a store. Baking soda is always on hand here. Right now I can make wheat, rye, oat, corn, rice, or spelt bread. I find it fascinating that potatoes and other root starches can be ground up and used for flour to make bread with, also. Even cattails and other wild roots. Ones imagination seems to be the only limitation. Most of the above can be used to make various gravies, as well. Nice for dipping one's bread in.