American Baker in Germany

This cake is part of our series in how to dress up a sheet cake. Back to school this year is special since it will be the first time some children will have gone to school for nearly six months due to COVID-19. I wanted to make it special. I started out with some vegan American buttercream and I put some in two bowls coloring one black and the other brown.  I frosted the top of my sheet cake with black buttercream.  Then I frosted the sides with brown.  I put the rest of the brown buttercream in a piping bag with a ribbed, flat piping tip.  Then I piped a line around the edges of the cake.  The lines overlapped a bit and I piped another, shorter line if there were any gaps.  Then I put away the buttercream and got out the fondant. I rolled out some white fondant and cut out the letters to spell Back to School, ABC and 123.  Then I placed the Back to School in the middle of the cake.  ABC and 123 diagonally in the corne...