TopicRecipe for a large sheet cake.
PostedTue, Aug 13th 2019 21:35 PM
Before baking a half sheet cake, butter and flour the cake pans, and add a layer of parchment paper to the bottom of each pan. This makes it easier to remove the cakes without them breaking once they have cooled. Never attempt to take a warm cake out of the pan. To assemble a half sheet cake from two smaller cakes, place the cakes side by side, with the long sides touching, on a cake board.
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.