Sheet Cakes (11x15) (12x18)
First off, I have never baked a cake larger than a 9×13. Anything larger than that size scares me. I have heard my stories of cakes of this size saggy in the middle, not cooked. Could any one give me tips to baking this size cake perfect. Another question, would I have to use a heating source. Thank you for all your tips and suggestions.