What Is The Difference Between A Custard Tart And A Portuguese Custard Tart?

What Is The Difference Between A Custard Tart And A Portuguese Custard Tart? There is one major difference though as far as the English and the Portuguese versions are concerned: the English custard tart is made of crust pastry and topped with nutmeg, while the Portuguese pasteis de nata is made with puff pastry and