Originally Posted by Andy M.
Bakechef, I had to look up heating cores. I had no idea. However, I need you to explain how it's used. It seems it would leave a big hole in the cake, so I know I'm missing something.
it does leave a hole, but you poke the cake out of the core, and place it back in to the cake.
An alternative to this is to use one or more flower nails turned upside down in the pan before the batter is poured in, these can be removed with very little damage to the cake.
Ateco has manufactured a heating core based on this idea, seems like this would work better since they are flat and a little thicker on the stem.
I avoided needing these for the wedding cake by doing multiple thin layers that cooked quickly, the thinner layers also cooked much more evenly and flatter. I also wasn't familiar with how my mom's oven cooked so, I thought that this was the way to go. My mom's oven ended up doing a pretty good job overall.