Pasteis de Nata, also known as Portuguese custard tarts, are a beloved sweet treat in Portugal. These delicious pastries consist of a flaky pastry shell filled with a creamy custard made from eggs, sugar, milk, and vanilla. The tarts are baked until the custard is set and the pastry is golden brown and slightly caramelized. Pasteis de Nata are best enjoyed warm, with a dusting of powdered sugar and a sprinkle of cinnamon on top. They are a popular dessert or snack and can be found in bakeries throughout Portugal.