TopicHow big is a half sheet baking pan.
PostedSat, Aug 31st 2019 16:51 PM
In general, the 13-by-9-inch cake will take about 5 to 10 minutes less than the 9-inch layers. To be safe, start checking about 15 minutes before the time in the original recipe. Cupcakes usually take about half as long as a 9-inch round cake. If the cake called for 30 to 35 minutes of baking time, start checking the cupcakes after 15 minutes.
It is virtually impossible to torte (cut in half) a sheet cake without it cracking or crumbling. Always chill the sheet cake if you are going to torte it so it is firm and cuts smoothly. Nevertheless, it is better to bake the layers in separate pans.