Mix together the
fromage frais and yogurt in a bowl and lightly fold
in the icing sugar and crème de cassis with a large metal spoon until lightly
blended.
Using
a small knife, remove any seeds from the grapes if
necessary. Rinse lightly and pat dry on kitchen paper.
Place the grapes in a bowl. Place the Amaretti biscuits in a polythene bag and crush
roughly with a rolling pin.
Cut the passion fruit in
half, scoop out the seeds with a teaspoon and
reserve.
Divide the yogurt mixture between 4 tall glasses,
then layer alternately with grapes, crushed biscuits and most of the passion fruit seeds.
Top with
the yogurt mixture and the remaining passion fruit
seeds. Chill for 1 hour and serve.