Chocolate is a bit gritty, almost like polishing compound. The site I read it on used it to polish the bottom of a coke can, to make a reflector to start fires with. I tried it (using jewelers rouge, I didn't have an chocolate), and it kind of worked. I was able to make some sticks smoke, in the fall in MN. In the summer in lower latitudes it should work fine.
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- Benton