Char Siu BBQ Sauce

The key ingredient here that makes this char siu sauce unapologetically Chinese is the red fermented bean curd, or tofu. You can find it in most Chinese markets, usually in a short glass jar with cubes of tofu inside. There are essentially two types of fermented bean curd: red and white. The red bean curd is fermented with red rice and has more alcohol content, more pronounced flavor, and a sweeter taste compared to the white. I prefer the red for cooking, but either one will work for this