Bún ngan Nhàn is one of the most famous and controversial culinary brands in Hanoi, located in Trung Yên alley in the heart of the old quarter. The restaurant is highly regarded for its traditional duck noodle flavor with sweet, clear, and rich bone broth. The duck meat here is described as tender, firm, juicy, and plump, served with soft bamboo shoots and fragrant, chewy mushrooms. However, the restaurant is also known as “the cursing noodle shop” due to the owner's allegedly rude service attitude, which has left many customers feeling uncomfortable. Despite this, it is precisely this that makes many people curious and still queue up to enjoy it, despite the rumors. The restaurant has a simple, small space and is quite crowded during peak hours, with a bowl of noodles usually costing around 40,000 VND. If you want a seat inside, you have to order a drink, plus the cost of parking, bringing the total cost to nearly 100,000 VND. Therefore, Nhàn's bún ngan is an experience suitable for those who prioritize traditional flavors and can accept the modest space and unique service attitude of the restaurant.