Line a quiche tin with the shortcrust pastry. Line the pastry case with baking paper and fill with weighted beans or rice.
Bake for 15 minutes or until lightly golden. Remove the paper and beans and set aside.
Reduce the temperature to 140°c. Mix together the filling ingredients, strain the mixture through a sieve and pour into the pastry shell. Top with berries.
Bake for 30 – 35 minutes or until just set. Refrigerate for 1 hour. Serve dusted with icing sugar.