Apparently not as disaster strikes twice. Approximately 2 hours later, I was ready to pipe the buttercream on my cakes and unfortunately I had bits of caramel that had crystallised clogging up my piping tube. Had to use a different piping bag in the end which had a removable nozzle so I could easily clear the obstruction each time it occurred. It took much longer than I expected to frost all the cakes as I had to re-do quite a few of them. The silver lining though is that the pattern is really pretty - it looks like a rose, doesnt it? I've not used this nozzle before so was really pleased with the end result.
Would I make this again? YES! In fact I made another batch on Tuesday night as everyone got to look at it on Monday but couldn't eat it as it was for the challenge. Voted one of my best baking creations by my colleague who has sampled almost everything on here. The cake is really moist and light and the salted caramel buttercream is amazing. I'll confess, I had a small bowlful of buttercream for breakfast on Tuesday :) Thought I deserved it after all this effort!