I found a cheap 11x15 glass pan, so i practiced a cake in there. I used 11-12 cups of batter and it took forever to cook. I started it at 325 but after 30 minutes it still looked completely undone, not even starting to cook. I brought the temp up to 350 and still nothing........... after a total time of 45 minutes, out of sheer frustration i put foil on top of the cake. It was browning but still shook as if it was raw, very raw. Well, the foil helped, it finally began to smell like a cake was cooking. But it did take over an hour to cook.
When i cut it open it has an odd color, i am guessing because it was in that temp for so long. It kind of browned an inch into the cake. It tasted fine and was fully cooked. But of course this is not how i would normally want to make a cake. so i researched......
and read that you can use flower nails to help them cook. i also read about heating cores (you learn something new every day!) but, they sound too difficult to use, and from what i read most prefer the flower nails. Where can i find these, i tried the usual kroger and meijer, and i am REALLY trying to avoid looking at walmart.....