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Yeah. Quite a lot.
It's a cool thing to do at a BBQ while you wait for the bbq charcoal to get ready. Lots of effort for something that goes up super fast and looks a lot more impressive than in the video.
If you want to go pro, you can actually stack them on top of each other to make a pyramid. But personally I don't like that as you end up with uncooked ones in the center of the pyramid.
Always remember to have the opening end pointing down, otherwise it fills with Ash.
IYE as in you've actually done that ^ ?