I got good results with this recipe and this method for making buttercream is my favorite. I did find the caramel flavor and color too subtle so I doubled the amount of caramel.
I've been looking for a good caramel buttercream recipe that I could use to frost some salted caramel cupcakes that I make for a while and I had been avoiding this one as it seemed complicated, but I have yet to find one I really like so today I decided to give it a try. It was a pain. And it's really light in texture - it's definitely not right for cupcakes that's for sure. Will have to keep trying.