There are many places to buy Vietnamese snacks in Hanoi. They are as follows:
1. The Old Quarter (Hoan Kiem District): This area is famed for its street food and local snack shops. One could find vendors selling various treats like banh mi, pho cuon, che, and many other items.
2. Dong Xuan Market: The indoor market supplies various goods; snacks included. Head to the food section to find an array of local delicacies.
3. Luong Ngoc Quyen Street: In the Old Quarter, this street is very famous during street food days. The must-try snacks include egg coffee, xoi (sticky rice), and banh troi (Vietnamese donuts).
4. Gia Lam Market: If you want to be quite traditional, get to the busy market, where you will find local people selling fried glutinous rice cakes and rice rolls.
5. Snack shops and bakers: Local chains like Cong Ca Phe or Highlands Coffee serve Vietnamese-style pastries and snacks. In addition, local independent bakeries may also offer sweet and savory items.
6. Local Supermarkets: Big C, Metro, or Co.opmart may have certain sections dedicated to snacks, packed with Vietnamese specialties, that are great to take home as souvenirs.
Do not forget to roam through all the alleys and the markets of the city for hidden gems and new tastes. Bon appétit during your exploration of the food culture of Hanoi!