Melt the chocolate in a bowl over a pan of hot water. Remove from the heat
and beat in the cottage cheese and egg yolks. Whisk the egg whites until
stiff, then beat in the sugar. Fold into the chocolate mixture with the
essences, then fold in the cake cubes. Stand the bowl over the pan of
simmering water and cook for 15 minutes. Spoon into glasses and chill.
Serve with the whipped cream.