How to make korean sweet potato cake<br>Fill a medium sized stock, soup or multi-cooking pot with 1.5 lbs of korean sweet potatoes (unpeeled). Cover with already hot water (to speed up the boiling process) so that the korean sweet potatoes are resting about one inch below the surface. Bring korean sweet potatoes to a boil and let cook for 25 minutes.
The potatoes should should rest one inch below the surface of the pot.