Lau Mam Mekong Delta – Fermented Fish Hotpot with Fresh Vegetables
Lẩu mắm is a Mekong Delta hotpot built around the distinctive flavor of Vietnamese fermented fish. The broth is commonly served with fish, shrimp, meat, seafood and a generous selection of vegetables, while fresh rice noodles complete the meal.
What makes the dish memorable is not fermented fish alone. Lemongrass, pineapple, eggplant and fresh vegetables add aroma, texture and balance, creating layers of salty, savory, lightly sweet and fresh flavors around the table.

What Gives Lau Mam Its Distinctive Flavor?
The broth is commonly made with fermented linh fish, fermented gourami or a combination of different fermented fish products. The fermented fish is cooked with water and strained before the liquid is developed into the hotpot broth.
There is no single recipe used everywhere. Preparation varies between households, restaurants and provinces. Lemongrass is often used for fragrance, while ingredients such as pineapple, eggplant or additional stock may help round out the broth.
Lau Mam in Mekong Delta Food Culture
Across the Mekong Delta, fermenting fish has long been one way to preserve seasonal freshwater catches. Linh fish, gourami, snakehead fish and other species may be processed into fermented fish products that are later used in different dishes.
Lẩu mắm builds on that pantry tradition and turns it into a communal meal. The fermented fish becomes the base for a hot broth, while vegetables and other ingredients are arranged around the pot for everyone to cook and share at the table.
For that reason, lẩu mắm is better understood as a family of regional preparations rather than one fixed recipe. What goes into the pot can vary according to location, season and what ingredients are available.

What Vegetables Are Served with Lau Mam?
One of the most noticeable features of lẩu mắm is the amount and variety of vegetables served with it. Different textures and flavors provide contrast to the strongly seasoned broth.
How Do You Eat Lau Mam?
Lẩu mắm is served at the table while the broth remains hot. Fish, meat, seafood and vegetables are normally added in stages rather than placing everything into the pot at once.

Does Lau Mam Have a Strong Smell?
Fermented fish has a distinctive aroma, so the first impression can be quite different from hotpots based on clear stock or bone broth. In lẩu mắm, however, the fermented fish is cooked together with several other ingredients rather than being eaten on its own.
If you are trying it for the first time, start with a small amount of broth together with rice noodles and plenty of vegetables. There is no need to look for one supposedly standard “mild” version, because each restaurant or household already balances the broth differently.

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