Potato salad is popular in korea, which surprises many non-asians. Besides being enjoyed as a side dish, it is used as a sandwich filling, an idea that is uncommon in western cuisine. So what makes korean potato salad quintessentially korean and different from american potato salad (with its heavy emphasis on mayonnaise) and german potato salad (with its bacon and vinegar ingredients)?Unlike western versions of this popular side dish, korean potato salad can include fruit and vegetables. This version, for example, includes a carrot, an apple, and half a cucumber, along with the expected potatoes. It also includes half an onion, which adds some tangy flavor to the mix but is not uncommon in western recipes. There's also no vinegary component to this korean potato saladthe recipe relies only on mayonnaise to blend the various ingredients. Finally, feel free to experiment with some of your own additions to this korean potato salad. Half a cup of sweet corn can add some nice flavor, and some people even use macaroni elbows in their potato salads.