February 21st, 2007
Preheat the oven to 180 deg. C (355 deg. F).
Place the ricotta, parmesan and eggs in a bowl and whisk until smooth.
Roll out the pastry on a lightly floured surface until 3mm (1/8 in) thick.
Cut into 4 x 15cm (6in) squares and place on baking trays lined with non-stick baking paper.
Spread the ricotta mixture over the pastry squares leaving a 2cm (3/4 in) border.
Place the leek on top of the ricotta mixture and brush with the butter.
Sprinkle with the thyme, salt and pepper and bake for 25-30 minutes or until the leek is golden.