“The cake is baked in a bundt (or ring) tin and decorated with marshmallow fondant and butter cream icing. The grey colouring is made from charcoal tablets. A false centre is created and topped with butter cream icing coloured using Hoppers Cherry Red natural food colouring and Hoppers Gold Crush 100s and 1000s – as the centre is false this doesn’t have to be eaten. A few favourite super heroes complete the scene.
Full details can be found here: Cooking For Oscar ”