Interesting. I liked the idea of "fire spice":
Mr. De Clercq tosses handfuls of what he calls fire spice — a blend of coriander seed, juniper berries, peppercorns, rosemary and other herbs — onto the embers to generate fragrant blasts of spice smoke.
Same idea as throwing Allspice onto embers for Jamaican cooking, if one doesn't have the tree. The tree grows like a weed in the right climate, but my attempt died the first winter of frostbite.