@Chipstix: Not African... I was making these at home over 20 years ago. Cut with a little device that was handed out free with the purchase of two knives at the local fair (can be used on carrots, beets etc as well)I used Kraft Dinner cheese powder...
Ate a Korean version last year. Crunchy like a potato chip. And make sure you wear a shirt of the same color as the powder. After eating, I had an orange-speckled white T-shirt on.

@hachimaki: I pretty much lived on those batter covered mystery-meat things my first 6 months in Korea! Load it up with ketchup! They were usually re-fried while you wait in order to get them hot again.

Last note: Potatoes are freakin' expensive in Korea! Five spuds smaller than a baseball: $4.00 !!!