Pastéis de Nata, also known as Portuguese custard tarts, are a beloved sweet treat in Portugal. These delicious pastries consist of a flaky puff 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. Pastéis de Nata are best enjoyed warm, sprinkled with cinnamon and powdered sugar. They are a staple in Portuguese bakeries and cafes, and are often enjoyed with a cup of coffee.