‘甜面酱’ (tián miàn jiàng) is a traditional Chinese fermented sauce made primarily from wheat flour, soybeans, salt, and sugar. Its name breaks down literally as ‘sweet’ (甜), ‘flour’ or ‘wheat’ (面), and ‘sauce’ or ‘paste’ (酱), reflecting both its key ingredients and its characteristic mild sweetness and savory umami depth. Unlike soy sauce, which is liquid and salty, sweet flour sauce is thick, glossy, and slightly sticky, with a complex flavor profile that balances sweetness, saltiness, and subtle fermentation notes.

This sauce is essential in northern Chinese cuisine — especially Beijing-style dishes — and is commonly used as a condiment for Peking duck, as a marinade for grilled meats like jianbing fillings, or as a base for stir-fried noodles and vegetables. It’s sold in jars and stored refrigerated after opening. While it contains wheat and soy, it’s not gluten-free due to the flour content, and it’s distinct from hoisin sauce (which often includes chili and more sugar) though sometimes substituted outside China.