To prepare
Break the milk chocolate into small chunks and place in a dry bowl. Heat the cream up stirring continuously and pour over the milk chocolate. Set aside for 2 minutes and then stir the mixture to form a smooth ganache. Once the ganache has cooled down, gradually fold in the whipped cream. Refrigerate to set the mousse.
The nutmeg cream
Freshly grate nutmeg over the whipped cream and refrigerate.
The stewed berries
Place the frozen berries (comprising a mix of strawberries, blueberries, raspberries, etc), sugar, thyme and spices in a pan along with half cup of water. Cook covered until the poaching liquor is fragrant, the sugar has melted and the berries are just cooked. Allow to cool.