https://www.maangchi.com/made-with/corn-syrup
Recipes found on Maangchi that use corn syrup 
You can make the Fried chicken recipe with corn syrup or chapssal donuts.
I usually put a little bit in when I’m caramelizing sugar, so it doesn’t form crystals, for example in marshmallows
You can also use it to make sauces shiny 