In a pot, heat the vegetable oil over medium heat.
Add the minced garlic and thinly sliced onion. Sauté until the onion is translucent and fragrant.
Add the thinly sliced pork belly or beef to the pot. Cook until the meat is browned and cooked through.
Stir in the gochugaru, gochujang, and soy sauce. Cook for another 1-2 minutes until the mixture is well combined and fragrant.
Add the chopped kimchi and sliced zucchini to the pot. Sauté for 3-4 minutes until the vegetables start to soften.
Gently add the soft tofu (sundubu) to the pot, breaking it into large chunks.
Pour in the water or anchovy broth.
Bring the stew to a boil, then reduce the heat to a simmer and cook for about 10 minutes, allowing the flavors to meld together.
Stir in the sesame oil and chopped green onions.
Season with salt and black pepper to taste.
Crack an egg into the stew and let it poach in the hot broth for a few minutes until the egg white is set but the yolk is still runny.
Enjoy your meal!