Bun Dau Mam Tom: Vietnamese Noodles & Shrimp Paste 2026

What Is Bun Dau? Vietnamese Tofu & Noodle Dish Explained

Bun dau is a classic Hanoi street food dish that has spread across all of Vietnam in the last decade. The name itself literally translates as noodles with tofu in Vietnamese. The dish is a deconstructed plate of cold rice vermicelli noodles, fried tofu, fresh herbs, boiled pork, sometimes fried pork sausage, all served with a small bowl of fermented shrimp paste sauce called mam tom that you mix together at the table.

A typical bun dau mam tom platter includes:

• Bun (rice vermicelli) - cold soft white rice noodles served at room temperature in small cylindrical bundles.
• Dau ran (fried tofu) - Vietnamese-style fried tofu cubes, golden on the outside and soft inside.
• Cha com - pork patty mixed with young green rice, lightly fried.
• Boiled pork belly - thin slices of cold boiled pork belly.
• Nem chua ran - fermented pork sausage, fried, optional.
• Fresh herbs - Vietnamese mint (rau thom), lettuce, perilla leaves and Vietnamese balm.
• Mam tom - the fermented shrimp paste sauce served on the side.

You eat bun dau by picking up small portions of noodles, tofu and meat with chopsticks, dipping them into the mam tom sauce, and adding fresh herbs as you go. It is a fun communal dish to share with friends and is the kind of meal that takes 30 to 60 minutes to slowly work through with conversation and beer.

Price range as of 2026: 50,000 to 100,000 VND per platter at a typical bun dau restaurant in Hanoi or Ho Chi Minh City. Larger platters for sharing cost 150,000 to 250,000 VND. Beer is usually around 25,000 VND per bottle.

What Is Mam Tom? The Fermented Shrimp Paste Sauce

Mam tom is the fermented shrimp paste sauce that defines bun dau. It is one of the most pungent and divisive sauces in Vietnamese cuisine. People who grew up with it love it. People trying it for the first time often have a strong reaction.

How mam tom is made: Tiny shrimp (called moi in Vietnamese) are mixed with sea salt at roughly a 4:1 ratio and left to ferment in clay or glass jars for several weeks to several months. As the shrimp break down they release amino acids and the mixture develops a thick paste consistency and a deep purple-grey colour. The longer the fermentation, the more intense the flavour. The most prized mam tom comes from the Thanh Hoa and Nghe An regions of northern Vietnam where the local shrimp and salt combine to give a particularly clean flavour.

How mam tom is served at the table: The raw paste is too intense to eat alone. Restaurants prepare it by mixing the paste with sugar, fresh lime juice or kumquat juice, chilli, sometimes a small amount of cooking oil, and occasionally a splash of strong rice wine. The result is whipped until light and frothy. This is what arrives at your table.

What it tastes like: Salty, deeply savoury, fishy in a complex way, with sourness from the lime and heat from the chilli. The smell is much stronger than the taste. If you can get past the smell on the first bite, you will probably enjoy it.

First-time tips:

• Mix the mam tom well before tasting. The lime and sugar transform the flavour.
• Start with a small dip. A little goes a long way.
• Pair with the fried tofu first because it absorbs the sauce well.
• Wash down with cold beer (bia hoi) or iced jasmine tea.
• If the smell is genuinely too much, ask for nuoc mam pha (a mild fish sauce dip) instead. Most bun dau places will substitute.

How to Make Bun Dau Mam Tom At Home (Recipe)

Making bun dau mam tom at home is easier than you think. The main challenge is getting crispy fried tofu. Everything else is assembly.

Ingredients (Serves 2)

Rice vermicelli (bun): 200g (or 1 block of pressed bun la), Firm tofu: 1 block, Fermented shrimp paste (mam tom): 4 tablespoons, Sugar: 2 tablespoons, Lime juice: 3 tablespoons, Water: 2 tablespoons, Garlic: 2 cloves (minced), Red chili: 1 (sliced), Fresh herbs: mint, basil, perilla leaves, cucumber slices (optional)

Instructions

Step 1: Prepare the sauce. Mix mam tom, sugar, lime juice, water, minced garlic, and chili in a bowl. Stir until sugar dissolves. Let it sit for 10 minutes. The mixture should smell strong but taste balanced with salt, sweetness, and lime.

Step 2: Fry the tofu. Cut tofu into cubes. Heat oil in a pan until hot. Fry tofu until golden and crispy on all sides (about 10 minutes). For extra crispiness, fry once more right before serving.

Step 3: Prepare rice noodles. If using pressed bun la, break into chunks. If using regular vermicelli, cook according to package directions and let cool.

Step 4: Assemble. Place rice noodles on a plate. Top with fried tofu cubes. Add fresh herbs and cucumber if using. Serve mam tom sauce on the side for dipping.

Tips on cooking

Use lots of oil when frying tofu. This creates the crispy exterior. Oil needs to fully cover the tofu. Fry twice for maximum crispiness. First fry until light golden, remove, drain. Fry again right before eating. Add lime juice and sugar to mam tom gradually until you like the flavor. You control the intensity. If mam tom seems too intense, add more lime juice and water to dilute it.

Fish Sauce Alternative

Mix 3 tablespoons fish sauce, 1 tablespoon sugar, 2 tablespoons lime juice, 1 tablespoon water, minced garlic, and chili. This gives similar dipping sauce with less pungency.

Best Places to Eat Bun Dau Mam Tom (Hanoi, Ho Chi Minh, Da Nang)

Although originating in Hanoi, Bun Dau Mam Tom has become popular throughout the country. Below are some recommended places where you can try this dish:

Hanoi (Best for Authentic Experience)

Bun Dau Met Goc Da
Address: 4 Ngo Gach Street, Hoan Kiem District
Hours: 7:30 AM to 11 PM
Price: 35,000 to 55,000 VND
Why: Open all day, not just lunch. Great for experiencing local culture since it's always crowded with locals.

Bun Dau Mam Tom Co Hoa 25 Au Trieu
Address: 25 P. Au Trieu, Hang Trong, Hoan Kiem
Price: 40,000 VND onwards
Why: Super cheap and yet delicious. Generous portions. Fresh ingredients.

Ho Chi Minh City (Northern Dish Goes South)

Bun Dau A Vung
Address: 6A-B Luong Huu Khanh, District 1
Price: 65,000 VND onwards
Why: Ho Chi Minh's most authentic bun dau spot. The tofu rivals Hanoi restaurants.

Bun Dau Homemade
Address: 01 Nguyen Van Trang, District 1
Price: 52,000 VND to 195,000 VND
Why: They make tofu fresh daily. Slightly pricier but quality is excellent.

Da Nang (Unexpected Quality)

Bun Dau Ha Noi Xua
Address: 143/1 Nguyen Chi Thanh, Hai Chau District
Price: 35,000 VND onwards
Why: Cheapest option. Surprisingly good quality given the price. Run by Hanoi transplants who brought authentic recipe.

Bun Dau Mam Tom-Bep Tien
Address: 278 To Hien Thanh, An Hai, Son Tra
Price: 50,000 VND onwards
Why: More touristy but excellent quality. Good if you want comfort with authenticity.

First-Timer's Tips

• Be Open to the Smell: Mam Tom is really pungent-smelling, which may seem weird to first-time eaters. The smell, however, speaks to the taste. Just give it a shot and you will be surprised!

• Adjust the Sauce: Many places will serve lime, sugar, and chili besides this shrimp paste to be mixed in. Play around with these to suit your taste buds.

• Watch Out for Seating: Be ready to sit on low stools, especially at street vendors. It is a whole different dining experience!

Price and Portion

Bun Dau Mam Tom is affordable bliss. Prices usually range between 30,000 to 60,000 VND ($1.20 to $2.4 USD) per head, depending upon the place and with what combination it is being served. Portion size is generous, making this a great, full meal for solo travelers and groups.

When to Enjoy

It is a dish for any time of day. At the same time, it is very famous for lunch. Normally, street vendors do business from late morning to early afternoon, so make sure to go at the right time.

Getting Around Different Food Places

For a food tour, Hanoi's Old Quarter is a very compact area wherein different restaurants, from each other, are very accessible by foot. Traveling from one spot to another takes 5-10 minutes by foot, meaning you can taste more dishes without wasting too much time.