This is a 2  tiered vanilla and chocolate sponge cake.  I don’t have a photo to show it, bit when you cut into the cake you get a checkered layered cake.  This was easier to do than I thought.  You just put the chocolate layer on top of the vanilla sponge layer and then cut the cake in 1 inch strips in parallel lines.  Next you swap each chocolate layer with vanilla to get a checkered look.

Make 2 batches of buttercream icing, one just plain vanilla, the other flavoured with chocolate or cocoa powder, but dark melted chocolate works and tastes best.

Put a layer of butter cream between each layer / to sandwich the cake together.  Then use a rose shaped nozzle to pipe vanilla and chocolate buttercream alternately around the cake.

It gives it a nice effect and is a tempting cake to look at.