@Microfractal I can't work out how you did that. Did you have something with lots of nozzles so it all squeezed out at once, or is the icing viscous enough that it took a long time to settle?
@christianp It's "a lot of nozzles". You have to go to Coppenrath&Wiese to have a look at it I guess. If so, it is a "hot chocolate brownie". Good choice. @Microfractal