Chocolate sheet cake – (any plain brownie recipe will do) icing, black food coloring, three color piping red, white and black, piping tips, sharp knife, 11×14 print out of Roger and spatula
Cut out your roger printout.
Place the roger shape over the cake and use it as a guide to cut the cake
You will need two shades of gray icing. Make a large bowl of the light gray and a small bowl of icing a darker gray
Smear the light gray icing over the entire cake Using your print out as a guide, make lines of where you will need to shade the cake Use the dark gray icing for the shading Using your tips and colored icing, color in the rest of the cake Now pipe the entire cake in black