That trimming is to take the edge off the top of the tier so that when you scrape /sculpt the icing over the edge with the shaping tool it will be possible to round it off so that it looks like a rolled icing. I use the Viva paper towel to smoothe and stretch the edge into a nice curve. I don't use butter in my icings so I can't answer that one. But since you do use cake flour in this one maybe butter wouldn't be a big issue. That's a guess on my part though. To trim I just take clean kitchen scissors and cut the edge off each tier (they are already filled and stacked) then I go ahead with my icing. Works great for my. Also scissors give me more control than using a knife for this..
"Life's tough, pilgrim. It's even tougher if you're stupid!" John Wayne
"Life's tough, pilgrim. It's even tougher if you're stupid!" John Wayne










