Lauren Hayes 4h ago

laurensflavorlab #vegetables

Dua chua (dưa chua) is a Vietnamese fermented pickle made from mustard greens that are wilted, packed with scallions and shallots, then submerged in a salted brine until they develop a mild sour flavor. Unlike quick pickles that mainly rely on vinegar, traditional dua chua develops its characteristic acidity through lactic fermentation. This home-style recipe uses about 2.2 lb (1 kg) mustard greens to make approximately 1 jar. Wilting the greens before fermentation reduces excess moisture and helps the stems retain their characteristic crunch. The brine combines water, sea salt, sugar, and optional white vinegar. Vinegar can add additional acidity, but fermentation remains the main process responsible for the traditional sour flavor. Dua chua is commonly served alongside steamed rice, braised pork, fried fish, and other savory dishes. It is especially appreciated during Tết meals, where the sour and crunchy greens provide contrast to richer dishes such as thịt kho and sticky rice. The recipe requires about 30 minutes of hands-on preparation, followed by 2–5 days of fermentation depending on temperature and preferred sourness. For crisp fermented mustard greens, wilt the vegetables before fermentation, keep them fully submerged under the brine, use a clean fermentation container, and transfer the jar to the refrigerator once the desired sourness develops.