The perfectionist in me loves a level cake. Something I can’t control very often. But, when it comes to splitting a cake, I have a trick that will help.
Insert at least 4 toothpicks to use as guides. Place them at the center if you are splitting halves like this:
Cut a piece of thread or unwaxed, unflavored dental floss (something I have never been able find), and wrap it around the circumference of the cake using your toothpicks as guides.
Then pull the ends, opposite each other, cutting through the cake like this: