Just found this one out last night when we were havin a fire...don't know if any of y'all know about them, so I'm sharing some wealth haha
Get a large log, the size you'd use as a chopping block, make sure one end is flat (don't want it tipping over)
Take a chainsaw and make 4 cuts across the top, down to a couple inches from the bottom
soak some firestarter into the middle
light
These bad boys stay burning for a long bloody time. Just need to toss a stick or two in the middle once in a while to wick the flames up and keep it going


