I searched on Youtube but there appears to be no videos on this particular technique so if anyone's interested, perhaps I could make one. Though there are picture explanations here on Tatting Fool's blog, if you fancy having a go at making it.
I made this for the first time last year and when I came upon it last night, I feared I wouldn't remember how to do it so I just had to make it again to be sure I remembered this unusual technique!
I think I may have to re-do it again in different colours now. Maybe in golds and reds to look even more like candle flames?