Drain the tofu.
Wash the seaweed thoroughly.
Add 0.5 spoon (7.5ml) coarse salt to 5 cups of water, bring to a boil, then add the seaweed and boil for 1 minute until it turns bright green.
Once the seaweed turns green, remove and rinse with cold water, then drain.
Drain all the water from the tofu and mash it.
Combine seaweed (200g), tofu (300g), brewed soy sauce 0.5 spoon (7.5ml), tuna extract 0.5 spoon (7.5ml) and mix well.
Finish with roasted sesame seeds.