Where can I find the best cheap street food in Hanoi?

Hanoi’s Old Quarter is packed with budget‑friendly stalls where a bowl of pho costs around 30,000 VND (~$1.30) and banh mi sandwiches are under 25,000 VND. Look for vendors with long local lines, as high turnover means fresh, tasty food. Evening street food stalls near Hoan Kiem Lake offer the best atmosphere and prices.