Soak the pork bones in water for 1-2 hours. Drain and wash afterward, It should turn from red to pink.
Place the pork bones in a deep pot and fill it with water. Add bay leaf, soybean paste, and soju, and bring it to a rapid boil for 10-15 minutes.
In the process of blanching, you will see foam and scum float on top. Drain it and wash each pork piece, removing any remaining impurities on it.
Clean the pot, place back the bones, fill it with water, and bring it to a boil again.
Blend scallions, jalapeno peppers, and radish, then add to the boiling pork bone. Leave it to boil for 30 minutes, and if more foam and scum are floating on top, remove them.
After 30 minutes, season the pork with soybean paste, pepper paste, garlic, ginger, salt, pepper flakes, black pepper, roasted soybean powder, and perilla powder. Let the soup boil for another hour.
Peel the potatoes and chop them into bite-sized pieces. Blanche the dried radish leaves to hydrate.
Add the potatoes and let boil for another 30 minutes. 15 minutes in, add the blanched radish leaves.
Once everything is cooked, serve it sizzling hot with rice, and enjoy!