Great question, ReNay. For a cake recipe that's only going to be increased slightly, it's just fine to increase all of your ingredients by a conversion factor (in this case, 1.5x). Sometimes when scaling recipes like yeast breads, it can be more accurate to use the Baker's Percentage so that you increase the ingredients based on the ratio of the weight of the ingredients compared to the whole. But for taller chocolate cake layers, so ahead and multiply all ingredients by 1.5x and bake the layers for about 5 minutes longer or until a toothpick inserted into the center comes out clean. Happy baking! Kye@KAF

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