At its core, Korean potato salad is a medley of potatoes, vegetables, and mayo, but it includes other vegetables, like corn and cucumbers, and fruits, such as apples.
Like any other recipe, you can adjust the dish to your personal preference. Try adding your favorite vegetables and fruits like onions, peas, and corn.
You can also be adventurous and toss in some raisins and diced sweet apples like Fuji or Gala. If you want an even sweeter version, swap out regular mayo for Kewpie mayo.