Cut the tofu into 1cm thick slices.
Sprinkle a little salt over the tofu.
Heat cooking oil in a pan and grill the tofu on both sides until golden brown.
Make the sauce (soy sauce, water, red pepper powder, minced garlic, sesame oil, sugar, green onion, sesame seeds).
Pour the sauce over the grilled tofu.
Simmer over medium-low heat until the sauce is reduced.