Chocolate and Orange Potato Cake

DIRECTIONS

• Preheat the oven to 180°C/Gas 4. Grease and line a 9 1/2" tin.
• Cream butter, potato and sugar together until light and fluffy.
• Beat in the eggs, then stir in the chocolate, orange juice and rind. Fold in the flour and cocoa, and pour mixture into the tin.
• Cook for 30-40 minutes. Ice when completely cool.
• Ganache:
• Bring the cream to a boil in a pan.
• Place the chocolate in a heatproof bowl and pour the cream over the top of it,mixing well to melt choc. Mix in the butter.
• Allow to cool very slightly, then pour over the cooled cake.
• NB:It really is worth using the best dark chocolate you can. Don't use anything less than 70% cocoa solid.