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Lom has a mild sourness and is widely used in northern Vietnamese cuisine. Photo: NonEgo Foods

Despite its confusing name, this wild-growing vine leaf is considered a gift from nature in northern Vietnam. It is a versatile ingredient in many dishes, with its most famous pairing being buffalo meat.

Known by different names across regions - including lom, la giang, la von ven, la thom lom, or la moi - this vine plant thrives in northern provinces, particularly in the mountainous areas of Hoa Binh, Son La, Lai Chau, and Dien Bien.

Compared to other wild vegetables such as rau don (fiddlehead fern), rừng spinach, or sau sau leaves, lom stands out not only for its unique taste but also for its tongue-twisting name, which is notoriously difficult to pronounce.

This leaf has a mild sourness and refreshing taste, making it a popular choice for cooking. It is commonly used in sour soups, stir-fried dishes, and hot pots.

A must-try buffalo dish of the Muong people

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Buffalo meat cooked with lom leaves is a signature dish of the Muong people in Hoa Binh. Photo: Le Trieu Duong

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When cooked together, the sourness of lom leaves enhances the buffalo meat’s flavor, reducing its gamey taste and creating an irresistible dish. Photo: Quoc Hoa Binh

Aside from buffalo dishes, lom is also used in pork rib soup and braised fish, adding a unique sourness to the dishes. Photo: Le Kieu Trang

Nguyen Mo, a restaurant owner specializing in buffalo dishes in Tan Lac District, Hoa Binh Province, explains that lom is harvested year-round and can be used fresh or dried.

The most famous dish featuring this ingredient is buffalo meat cooked with lom, a specialty of the Muong ethnic group in Hoa Binh and neighboring provinces.

To ensure the best flavor, only mid-aged leaves are selected, as they provide the right level of sourness without being too bitter or astringent. The buffalo meat must also be fresh, tender, and firm.

For the most authentic flavor, the buffalo meat is lightly charred to enhance its aroma, then cleaned, cut into small pieces, and simmered until tender with seasonings.

The lom leaves are washed, either finely chopped or crushed, and added to the stew. Some recipes also include broken rice grains, which help create a natural sweetness and thick texture for the broth.

Although the preparation varies by region and personal preference, the dish always delivers a perfect balance of flavors.

As the broken rice grains soften and expand, the buffalo meat reaches its ideal tenderness, while the stew thickens, absorbing the rich, sour flavor of lom. The leaf’s sourness helps neutralize the gamey taste of buffalo meat, making the dish appealing to a wide range of palates.

At first glance, the dish may seem simple, but its depth of flavor is incredibly captivating. The tender buffalo meat, infused with the tangy notes of lom, creates an irresistible taste that excites the palate.

Beyond buffalo meat, lom is also used in other creative dishes such as sour pork rib soup and braised fish with lom leaves.

Thao Trinh