Here's a question-when baking an 11x15 sheet cake, do I need to use a heating core? If so, do I just need one in the middle, or one on each end? I have only used heating cores with the 8x3 round pans. Please help-have to bake this one tomorrow!! Thanks!!
I never use a heating core in my 11x15 sheet cakes.
NO......plain and simple It is not necessary.
I'm the odd man out here, I use upside down flower nails in my sheet cakes to help bake more evenly. I also use bake even strips and I never have much of a dome to level off.