Step #3 Add the 30ml/ 2 tbsps caster sugar & whisk again until stiff & the sugar is dissolved.
Step #4 Bring the milk to a simmering point in a wide flat pan.
Step #5 Shape the egg white mass into a round flat cake & poach this carefully in the simmering milk for a few mins, turn it carefully with a fish slicer or long spatula & poach the other side.
Step #6 Leave to drain on kitchen paper or a clean cloth.
Step #7 Beat the egg yolks & half the sugar into the melted chocolate and pour the slightly cooled milk over the mixture.
Step #8 Place over hot (not boiling) water in a double boiler.
Step #9 Cook stirring constantly until the mixture thickens to the consistency of thin cream.
Step #10 pour this into a glass bowl & place the egg whites on top.
Step #11 Chill.
Step #12 Ten mins before serving, caramelize the remaining sugar in a heavy saucepan & pour over the egg whites.