Frozen White Chocolate Mousse

Directions

1. 1
   To melt the chocolate, grate or break into small chunks and place in a heat proof bowl over hot, but not simmering water, stirring regularly.
2. 2
   In a large bowl, beat the egg yolks until pale and creamy, then beat in the warm chocolate working continuously so it doesn't set.
3. 3
   Whisk the cream until soft peaks form and fold into chocolate mixture.
4. 4
   Whisk the egg whites with the sugar until soft peaks form.
5. 5
   Fold into the mixture with the optional flavours until just combined and freeze for four hours.