This is one of my favourite recipes, and one that is always requested. It was passed to me by a very nice Swiss lady.

300g dark toblerone
2 large eggs, separated
400ml whipped cream
icing sugar

Melt chocolate in bain-marie with knob of butter
Stir 2 tbsp icing sugar into egg yolks, add melted chocolate
Whisk egg white and fold into chocolate mixture
Whip cream and fold into chocolate mixture
Set in fridge