If you have a chainsaw, and a log that is fairly large and a smidgin of gas, a Norwegian fire log works dandy for cooking on. Some will burn for roughly an hour. [video=youtube;WFIot84KvEU]http://www.youtube.com/watch?v=WFIot84KvEU[/video] Just one example. Less than a minute long, if you can tolerate the music.
Best part is that you can usually throw the left over chunks that didn't complete burning in your stove inside. Rocket Stoves are the (*)(*)(*)(*) too. Use little fuel, and provide gobs and gobs of heat.
Here is a good vid on building a rocket stove: http://www.google.com/url?sa=t&rct=...ibLgntMSP4YTBty40EpwdMw&bvm=bv.42080656,d.b2I