Peanut crisp is a kind of refined food with top-grade peanut kernel, high-quality white sugar and caramel as main raw materials. Peanut kernels are cooked by baking or frying, then white sugar and maltose (maltose and sweet potato sugar in ancient times) are heated and melted, the cooked peanut kernels are mixed with the melted syrup, and finally they are pressed, shaped and cut.