Fantastic dish. I made this tonight. Oddly enough I never had this dish growing up. I subbed in daikon for the potato since we had it on hand.
Be careful about the amount of liquid that’s in the pot when you put the noodles in. They’ll absorb quite a bit. You may also not need to add the potato starch slurry if it’s cooked down enough.
I actually never ate this growing up either. But will definitely be trying it out soon.
A regional thing, maybe? I’ll have to look up regional dishes from Busan.