Make chocolate curls with the white
chocolate by running a swivel peeler over
the surface. When you have enough to
sprinkle over 4 chocolate pots, set these
aside, then chop the remainder.
Melt the dark chocolate in a bowl over
simmering water or in the microwave
on Medium for 1½-2 mins. Leave to cool
slightly. Whisk the egg whites until stiff,
then whisk in the sugar and cardamom.
Fold in the melted chocolate, then gently
fold in the chopped white chocolate.
Divide between 4 small dishes or cups,
about 100ml in size. Sprinkle over the
white chocolate curls and chill until ready
to serve, at least 1 hr.