How to make the remaining bean dregs of soybean milk into bean dregs?

Bean dregs cake is made of bean dregs, which is the "leftover" of tofu. The owner of the bean curd shop put the white wet bean dregs into a heating pot, kept turning it, baked it into golden dry bean dregs, shoveled it in a bean curd basin or basket, spread it out, put it in a bowl, and pressed it dry with his palm. Then, the bowls are locked side by side in a wooden box covered with straw, and the bar codes are affixed layer by layer, and the enzyme is fermented for more than 10 hour.