Double Layer Sheet Cake - Add your filling or frosting, then gently set the second layer in place. When it comes to stacking and frosting the cake, just use the same method you follow when making a traditional layer cake: If the recipe yields two 8 to 9 cakes, i increase the recipe by 1.5 (if you measure by weight, rather than volume, this is a cinch). Any layer cake recipe that yields three 8 or 9 cakes will work in a half sheet pan with no adjustments needed. Use a dollop of frosting on your cake plate to hold the first layer in place.
When it comes to stacking and frosting the cake, just use the same method you follow when making a traditional layer cake: Add your filling or frosting, then gently set the second layer in place. Use a dollop of frosting on your cake plate to hold the first layer in place. If the recipe yields two 8 to 9 cakes, i increase the recipe by 1.5 (if you measure by weight, rather than volume, this is a cinch). Any layer cake recipe that yields three 8 or 9 cakes will work in a half sheet pan with no adjustments needed.