Share a little about the materials, processes, and techniques used to create this cake Chocolate cake filled with chocolate ganache, vanilla buttercream & black currant jam, covered in sugar paste. Model made with sugar paste strengthened with gum tragacanth. What advice would you give someone starting this project? I wanted a clean, simple look. I used the colours of his favourite football club, so there was something personal to him without it actually being a football themed cake.