When I lived in New Jersey there was a Portugese Bakery close by. Every Sunday I would go there to buy fresh "Pastelitos de Nata". They were to die for. They just melted in your mouth. There was always a big line to buy them. After moving away It had been many many years since I last had them. Well what luck a very good friend of mine marries a Portuguese girl; and her family comes from Portugal to visit and I was able to get this great recipe for this delectable dessert. Enjoy
Preheat oven to 375 degrees. Lightly greese 12 muffin cup pan or cupcake pan. Line the bottom and sides with the puff pastry.
In a saucepan, combine cold milk, sugar, cornstarch, pinch of salt, and vanilla. Cook, stirrring constantly, until mixture thickens. Place egg yolks in a medium bowl beat a little with a fork. Then wisk 1/2 cup of hot milk mixture into the egg yolks. Tempering them. Gradually add the egg yolk mixture back into the remaining milk mixture; wisking constantly. Cook stirring constantly for 5 minutes, or until thickend. Remove vanilla bean.
Fill pastry-lined muffin cups with the mixture about a tablespoon and a half per cup. Bake in preheated oven for 30/35 minutes, or until crust is golden brown and the filling is lightly browned on top. Enjoy