Brooklyn Blackout Cake with Mocha Buttercream

My aunt came down for my mom's birthday, but not on the actual day. So I had to make a second cake. I made the same Brooklyn blackout cake I made on July Fourth, and a similar mocha buttercream. Since we'd eaten a whole cake already, I decided to do just one layer. I love buttercream and I could have split the cake in half to make a second layer (as I would usually) but it just seemed too gluttonous to use that extra buttercream. Regardless, it was still delicious and the Brooklyn blackout cake was incredibly moist so it really didn't need the extra buttercream.

Look how lovely and dark the cake is.