Portuguese Custard Tart "Pastel De Nata"

Ingredients:
1 (500 gram) packet of puff pastry
225 ml (8oz) milk
3 tablespoons plain flour or 2 tablespooons corn starch
200 grams (7 oz) granulated sugar
1/2 vanilla bean or 1 teaspoon vanilla extract
6 egg yolks

Directions:
Preheat oven to 375. Lightly grease a 12 cup muffin tin and line bottom and sides with puff pastry.

In a saucepan, combine mile, corn flour, sugar, egg yolks and vanilla. Cook, stirring constantly until mixture thickens.

Cook, stirring constantly, for 5 minutes or until thickened. Remove the vanilla bean.

Fill pastry-lined muffin tin with mixture and bake in preheated oven for 7-9 minutes, or until pastry is golden brown and filling is lightly browned on top.