Slice the green onion and onion thinly. Cut the tofu into bite-sized pieces.

Mix soy sauce, anchovy sauce, chili powder, sugar, and minced garlic to create the seasoning sauce.

Add 1 cup of water to the seasoning sauce and mix well.

Place pork belly slices at the bottom of a pot. Trim them into smaller pieces if needed.

Layer tofu slices on top of the pork belly, avoiding overlap.

Add sliced onion, green onion, and red chili on top of the tofu.

Pour the seasoning sauce over the ingredients evenly.

Drizzle sesame oil around the pot and bring to a boil over high heat.

Reduce to medium heat once boiling and occasionally spoon the sauce over the ingredients.

Simmer until the sauce reduces and adjust seasoning with salt and pepper if needed.