Would Dawn's recipe for the BC also be a good choice to ice the cake with? Or have you guys found that a contrast in buttercream flavors is good? I want to ice the cake in vanilla/buttercream icing.
You can ice the cake with the same BC you used to make the BCT. I think it would be easier too not to have to make another recipe. If you wanted chocolate or any other flavor that would change the color of the icing, do your BCT first and then add the cocoa powder or whatever it may be to the BC.