A flavoring agent for soybean paste-based foods, precisely recreating the distinctive complex aroma of traditional fermented soybean paste - the top note presents a rich sauce aroma and a slight sourness, the middle note releases a full fermented ester aroma and the base of soy aroma, and the aftertaste has a long-lasting smoky and roasted nutty fragrance. The overall aroma is rich and round, with rich layers, giving processed foods the authentic soybean paste flavor.