This is my favourite recipe for chocolate mousse, the simplest I've ever come across ~ if I can do it, you can too, and it is delicious :)
100g dark chocolate, plus a little extra for shaving to decorate the top
4 egg yolks
50g caster sugar
4 egg whites
1. In a bowl, melt the dark chocolate and butter in a microwave on ‘defrost’ (approx a minute), stir well to combine the two then leave the bowl to one side and allow the chocolate to cool.