I use 2/3 the recipe for a 6x2 and 1 1/2 times the recipe for a 9x2. No adjustments needed with the baking powder or baking soda. The wh choc cream cheese frosting is lovely with this cake. It just doesn’t pipe all that well—very soft. But certainly, the cake is up to being decorated with that or any other frosting.
Was able to slice the 9” horizontally, fill and torte, then decorate with buttercream and chocolate figures to delight a child who wanted a Nemo cake. Her parents wanted a health-conscious cake, so selecting the whole wheat carrot cake was a no-brainer. It’s also quite yummy!
About the baking time, I learned by trial and error that the 6” needs 50 minutes in my oven. The tester came out clean once much sooner and the cake was tacky, almost but not quite gooey in the centre. I gave the 9” 45 minutes at 350 and then turned my oven down to 325 for another 20 minutes or so. If you have an instant read thermometer, you’re looking for 205 degrees in the center of the cake.