At the beginning of this trip, this was one of my favorite foods. Once Monica´s dad saw that I liked them, he kept buying us box after box. I don´t know the Korean name, but the name is often written in English as a walnut cake. It´s basically a waffle molded into the shape of a walnut it its shell filled with red bean paste and a walnut. They usually made with a highly-automated machine that has dozens of little walnut-shaped waffle mold, nozzles to dispense waffle batter and red bean paste. Usually a human adds the walnut. There is also an arm to flick the finished product into a collection bin, caught here in action. Normally there would be two walnut cakes being flung into the bin, but they have the option of running the machine at half capacity, to pace customer demand so they are hot and fresh when someone buys them.