Tianmian sauce
Tianmian sauce (Chinese: 甜麵醬/甜醬; pinyin: tiánmiànjiàng; tiánjiàng), also known as sweet bean sauce, sweet flour sauce or sweet wheat paste, is a thick, smooth, dark brown or black paste with either a mild, savory or sweet flavor. It is commonly used in Northern Chinese cuisine, Northeastern Chinese cuisine, as well as Korean-Chinese cuisine.