This is a fun and creative Guinness cake for a milestone birthday. We use the Guinness to bake the chocolate cake layers and frost them together with cream cheese frosting and chocolate sauce. Outside is frosted with buttercream. The top of the cake looks like Guinness is foaming over the edges, we finish off with a Guinness logo in the front. We can add a birthday message writing in chocolate on the cake board or a fondant plaque on the top. A cake for a true Guinness fan.