Prepare ingredients by chopping onion, green onions, and garlic
Cut zucchini into bite-sized pieces
Heat a pot and add the onion, garlic, and ground pork if using
Add the seafood to the pot
Pour in 1 cup of water
Add gochugaru, oyster sauce, soy sauce, fish sauce, and chicken bouillon
Bring to a boil and add zucchini
Gently add silken tofu to the stew
Simmer until all ingredients are cooked through
Top with green onions and optional egg or chili oil before serving
