Beat cake ingredients except boiling water together well.
Add boiling water until a thin batter.
Pour into tin and bake accordingly in 170 C oven(150 fan)for 35-45 mins.You will have to keep a close eye on it as I can only give rough cooking times as not sure what tins you are cooking in. Use a skewer to check. It should come out clean.
Carve cooled cake carefully to a brain shape and brush with strawberry jam. It is a chunky oval shape with a flat bottom and slightly wider at one end. Have a picture in front of you of the finished item. Don't forget the icing will hide lots!
Pinch off pieces of fondant icing and roll them into worm like pieces about 1 cm thick.Start placing on your fondant icing by using the worms to make a squiggle pattern. See photo. Figuratively split your cake in half. It really is very forgiving as you just keep going in a snake/maze like pattern.Then repeat on the other half. Indent the middle channel slightly.
Blob generous amount of Strawberry Jam on top for glorious gore.
A further dramatic flourish would be a carving knife plunged askew in the centre.
Apply to Warty Face
Notes
I used a stainless steel bowl 25cm wide and 12 cm deep.