Preheat oven to 180°C.

Mix melted butter, bake mix and milk until batter is smooth.

Grease 2inch dia. round mold and pour batter in.

Bake at 180°C for 30 minutes until a tooth pick inserted in the centre comes out clean. Take out from the oven and leave to cool for 15 minutes.

Pour melted white and dark chocolate over the cake & leave to set for 5 minutes. Serve.