Cut the tofu and Spanish mackerel into bite-sized pieces.
Season the tofu with salt and pepper.
Sprinkle rice wine over the mackerel to remove any fishy smell.
Prepare the seasoning sauce (soy sauce, red pepper powder, minced garlic, oligosaccharide, sesame oil, and pepper).
Heat oil in a pan and grill the tofu and mackerel on both sides until golden.
Brush the grilled tofu and mackerel with the seasoning sauce and grill once more.
Place the finished dish on a plate.