You are watching: How many cake mixes for a sheet cake
To find out the volume that a cake pan, main point the size of the pan by the broad of the pan by the depth or elevation of the pan. Because that instance, an 11-by-15-inch pan that"s 4 inch deep has actually a volume the 660 cubic inches. Because that the depth measure up of a cake, use the approximate height that you want the cake to finish up or would intend it to end up when baked in the dimension of the pan in question.
A snack cake mix offered in bags or little boxes ideally created an 8-by-8-inch pan v a 4-inch depth makes around 256 cubic inch of cake. If you"re spring to fill an 11-by-15-inch cake pan to around the exact same depth, you"ll need at the very least two cake mixes, which with each other make 512 cubic customs of cake. That will certainly still leaving the cake slightly much more shallow than as soon as made in the 8-by-8-inch pan, so consider buying a third cake mix, permitting a total volume that 768 cubic inches. As soon as using three such cake mixes in one 11-by-15-inch pan, the cake will certainly actually be a little an ext than fifty percent an inch higher than if using just one in an 8-by-8-inch pan.
When utilizing full-size cake mixes produced 9-by-11-inch cake pans, presume a 4-inch depth again, you"ll require two cake mixes to to fill the 11-by-15-inch pan. Due to the fact that the 2 cake mixes with each other would make the cake practically an inch thicker than the solitary version make in a 9-by-11-inch pan, rise your baking time by at least a few minutes. If the mix endangers to overflow your pan upon increasing in the oven, pour only part of the double mix right into the pan and discard the rest. Roasted the cake in a cake pan on peak of a baking sheet to stop spills.
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For a thin sheet cake suitable for layering, for use in various other desserts or for a bar-style cake, use just one cake mix because that the big pan. Its volume will spread throughout the pan to produce a thinner cake. Consider adding to the batter"s volume if friend don"t have enough boxes of mix to obtain as much elevation to the cake as you"d prefer by beating an extra egg right into the mix. In enhancement to including liquid volume, the egg leaven the batter and also cause the to climb higher.
Andrea Lott Haney write articles and also training products for food sector publications. Having actually studied foodservice sanitation, nutrition and also menu planning in ~ Purdue University, Lott Haney has more than 10 years of endure as a catering and also event planner for deluxe hotels and currently tourism the Midwest together a corporate customer service trainer and also consultant.