Make the batter by combining flour, potato starch, water, kimchi juice, garlic, sesame oil, salt, and pepper. Mix it well, taste, and adjust.
Add the egg, and mix again. The batter should be slightly thick but not too thick at this point.
Add the onion, scallions, kimchi, and pork. Mix well until everything is coated well by the batter.
Check the batter again, it should not be too loose. If it is loose, add flour and potato starch. If it’s too thick, add water and kimchi juice. Do this 1 tablespoon at a time until the correct consistency is reached.
Heat up the pan with a generous amount of oil until you see white smoke forming.
Place a handful of batter in the pan and shape it into a flat circle. You only have 30 seconds to do this otherwise you won’t be able to reshape it again.
Do the 2-2-2-2 rule: 2 minutes on high heat on both sides, and 2 minutes on medium heat on both sides. 8 minutes and 4 flips in total. In every flip, place a round of oil on the edges of the pan to crisp up the pancake.
To check if it is done, you can beat it a little and the hole should not ooze out any more wet batter. The exterior should also be nicely golden brown.
Serve with makgeolli and enjoy!