I am making my first 3D cake next weekend and I just have a couple questions. The cake is going to be 6" X 18" and about 8" tall. So I was going to bake 2 12X18 sheets, cut then in half and stack. I am going to bake them tomorrow and stick them in the freezer.
When I cut them would it be best to do when they are frozen still?
Do I wait until they are thawed before stacking?
It is buttercream filling. Once stacked should I put a few bubble straws in the cake to help keep it straight since it is tall and long?
I am also debating if I should cover the whole thing in white fondant and then add color because red is so hard to accomplish. I make my own MFF.
Thank you as always for any help! I love this site and the wonderful advice I get since I am still so new.

Hi,

It is easier to cut a frozen/very cold cake into the shape that you want it to be.

i would let it thaw out just a lil to help with condensation and then fill, stack, dowel/bubble straw it and the cut to shape.

If red is too hard for you to achieve then you should do it in white and then airbrush yr colors on,

HTH