I split the cake layer in half, called torting, and filled it with buttercream. I didn't have a lot of buttercream left, so I decided to just frost the top. As you can see the buttercream I had leftover was from a crumb coat. I was definitely scraping the bowl with this one.
To get the spiral look, I used a small offset spatula. I started in the center of the cake with the spatula held at a 45 degree angle and the tip against the buttercream.
I began slowly turning the cake turntable while bringing the spatula out toward the edge of the cake. This technique is similar to the chocolate ridged technique I did a while back. This is an easy and forgiving technique to decorate with. If you don’t like the way the spiral looks just smooth the buttercream and start over.
I really like how this cake turned out. It has a rustic look. The next time I try this technique, I will add more filling and use a buttercream without crumbs.