This cake was created using the frozen buttercream transfer method.
We were invited to a game night where the game Power Grid would be played. We were asked to bring something to eat, so I decided to make a cake based on the Power Grid box art.
I chose to use the frozen buttercream transfer method. At first, I considered using the entire box art, but I soon realized that the level of detail required would be impossible with piped frosting. To start, I downloaded a picture of the box art and cropped out a section to use on an 9×13 cake. The picture was reversed in picture editing software, printed out to the appropriate scale, and taped to a cutting board. A sheet of wax paper was taped on top.
I broke the colors of the picture down into 10 colors. Starting with the black outline, I piped the frosting onto the wax paper, using the image underneath as a guide.
Covering over the black outline is fine, as the piping done first will be visible once the frosting is flipped over on to the cake.
Here all the colors have been applied. It took about two hours to mix the colors and pipe them on to the wax paper.
Once complete, the board goes into the freezer where the frosting will become firm.
Here is the blank 9×13 cake, cooled and ready for the frosting.
At this point, I removed the board from the freezer, inverted it onto the cake, cut away the tape, and carefully peeled off the wax paper. It’s important to do this fast, as the frosting will thaw quickly.
In hindsight, I should have smoothed out the frosting in order to press out the air bubbles.
Additional green frosting was added to the sides, completing the cake.