I am new to decorating cakes. I have my first order for a birthday cake next week. Simple 2 layer 8" rounds with Peanut Butter filling. So decided maybe I'd make one today just to be sure. I found a great peanut butter buttercream recipe so made it. My layers looked really level so didn't level the bottom layer (probably my first mistake). I used the peanut butter filling to make my dam and proceeded to put the layer of peanut butter filling on at the same time. Well before I finished icing it, the top layer was sliding off the bottom. Any suggestions? Thanks

From your description it sounds like your bottom layer had a dome then that was sticking up? Cutting this off will help.

But for your filling, was it a stiff buttercream? It is usually recommended to use a stiff buttercream around the edge and then put your filling in. If your peanut butter icing was to soft then your top layer is going to slide.

It wasn't real stiff. I'll use a different buttercream for my dam and will level the bottom layer.
Thanks Leily

What are you covering your cake with?

What I normally do is dam cakes with a stiffer BC first and then will thin out the rest of my BC to cover the cake with.

Thank You! That worked