Start heating the pot on the stove over medium low heat and add the chili oil, chili powder, and garlic. Stir them well for about 1 min. Make sure not to burn the chili powder.
Add the clams and shrimps and stir quickly to coat them with the chili sauce. Add the fish sauce and soy sauce then stir.
Add the dried kelp and anchovy stock and boil it on medium-high heat until it starts to boil rapidly (2 to 3 mins).
Add the tofu, mushrooms, and egg and cook them for another 2 to 3 mins. Season with salt, if required.
Top up with the green onion, black pepper and sesame oil. Serve hot with Korean rice and side dishes (banchan).
