First I found a picture from one of my son’s books for this Nemo Birthday Cake Idea. I then sketched the image to the size I wanted for the cake onto some greaseproof/see-through paper.
The cake was made by using vanilla butter cake packet mix as I find the packet cakes are easier to ice than cakes that are totally home-made.
When the cake was totally cooled, I used toothpicks to secure the sketched image onto the cake and then cut around the outside edge of the design. The other outlines and details were “marked” onto the cake by inserting a skewer/toothpick at close intervals along the lines of the sketched image so that the detail of the design was left on the uniced cake.
I used vanilla butter icing tinted in the various colours to ice the cake. The black details is licorice straps cut to size.