Add sliced onion, dried shitake mushrooms, minced ginger, soy bean paste and dried red chili pepper to pot. Boil the pot for 1-1/2 hours over medium heat.
About 1-1/2 hours later, take the red hot chili pepper and shiitake mushrooms out of the pot.
This soup takes time and patience and requires some ingredients from a Korean or Asian supermarket but the flavorful broth combined with the fall of the bone pork will be well worth the effort. The total time from start to finish to complete will take around 4-5 hours.