credit to haetssali for the recipe
Korean Pork Back Bone and Potatoes Casserole
감자탕 (Gamjatang)
Ingredients
Set A (Base Ingredients)
1kg of pork back bone, about 400g of kimchi (the cabbage kind), 3 small potatos, 1/2 carrot, 1 pack of enoki mushrooms, 2 red asian peppers, 2 green asian peppers, 1 spring onion/negi (the big ones not small ones)
Set B (Boiling Ingredients)
1 onion, 1 spring onion/negi, 5-6 cloves of garlic, 3 ginger roots, 1 tbsp of miso
Set C (Sauce)
1/2 cup of beef/fish/chicken/dashima/bonito stock water (i usually use dashima/bonito), two tbsp of korean chili powder, 1 tbsp of salt, 1 tbsp of minced garlic, a pinch of black pepper, 1 tbsp of ground sesame
Step 1

immerse the pork bones into water for about half a day to get all the blood out from the bones and the meat, changing out the water 4-5 times during the process to make sure the blood doesn’t flow back into the meat.
Step 2

boil your now blood-drained pork back bones in boiling water for about 4-5 minutes.
Step 3

rinse your boiled pork back bones to make sure no sediment or other impurities from the bone are stuck on the meat.
Step 4A

dump contents of Ingredients Set B and the back bone into a pot and boil in medium high heat for about 2-3 hours
Step 4B

while you wait for ingredients in step 4 to come to a nice 2-3 hr boil, prepare the vegetables and other miscellaneous veggies in Ingredients Set A sans pork back bone as seen above.
Step 4C

this is the wildcard ingredient of the recipe — be sure to clean all the little bits and pieces off the kimchi so to have just the napa cabbage before dumping it in to the pot; if you’re not a fan of kimchi, you can replace it with normal napa cabbage
Step 5

try to remove the impurities (lye) that surface to the top of the pot while boiling the vegetables/meat using either an aku-tori, spoon, or a wooden scooper.
Step 6

when you’re done boiling the ingredients, remove everything from the pot except for the soup and the meat/bones and dump in the ingredients you set aside in Steps 4B-4C and Ingredient Set C
Step 7

bring Step 6 to a boil until everything is nicely mixed together as seen above, and you’re done.