Cut the tofu into 1cm thick slices.
Remove excess moisture from the tofu using a kitchen towel.
Add cooking oil to a pan and cook the tofu until golden brown on both sides.
Mix soy sauce, water, chili powder, minced garlic, chopped green onion, sesame oil, and sesame seeds to make a marinade.
Add the marinade over the golden brown tofu and simmer on low heat.