Whenever I ice my cake and lay the MMF over it and try to smooth the sides out you can see the layers in the cake it looks like rolling hills...what am I doing wrong???

Maybe roll out the fondant thicker?? I have that problem too though so don't listen to me hahaha

Hi! I would make a thicker undercoating of buttercream. Then, while the buttercream is still fresh (not crusted over), I usually smooth the fondant over the cake with my hands first, and then with the fondant smoother tools.
Maybe your fondant could be a little thicker too... I think I've heard it should be between 1/8 and 1/4 inch thick - but I don't even know how thick that is! I always eyeball it. Hope this helps!

I always allow the buttercream to crust then get it as smooth as possible. The few cakes I have done have turned out nice. And I have used Wilton, Pettinance (sp?) and MMF.

Thanks for all your replys.

I frost the cake like normal, and then go take a nice long break to let it sit and settle.