2) For the chocolate mousse, place the chocolate in a metal bowl above a pan of simmering water until melted. Set aside.
3) In a separate pan, boil the milk and add to the chocolate. Whisk in the egg yolk to combine.
4) In a separate bowl, whisk the egg whites and sugar until they form soft peaks. Add a third of the whites to the chocolate and gently whisk in. Fold in the rest. Pour into a suitable container and allow to set in the fridge for 20 minutes.
To serve, dip a spoon into the melted chocolate and flick onto a plate to obtain a streak. Place a pear in the centre and spoon the chocolate mousse to the side. Finish with a sprig of mint.