This Nutella Mud Cake is incredibly sinful but heavenly yummy! This recipe was adapted from The Australian Women's Weekly cookbook but I've changed the chocolate to Nutella. This cake is very easy to make without the need of an electric mixer. Just simply melt the Nutella spread, butter and sugar together, then add in the flour and egg. One thing you should not miss out is the liqueur, rum. This cake is full of aromatic rum flavour, dense, moist, rich and fudgy. If you're a Nutella fan you must try this!