Cà Phê Sữa Đá, or iced milk coffee, is a popular drink in Hanoi. It is made by combining strong Vietnamese coffee with condensed milk and serving it over ice. The result is a sweet and creamy beverage with a bold coffee flavor. Cà Phê Sữa Đá is a staple in Vietnamese coffee culture and can be found in many coffee shops and street stalls throughout Hanoi. It is a great choice for coffee lovers who prefer their drink cold and refreshing.