「PREP」Put the scallops in a small bowl and marinate in the soy sauce and sake for about 5 minutes.
Heat a frying pan to medium and add vegetable oil. Add the scallops and fry both sides. If using fresh scallops, searing them for just a couple of minutes per side will be enough. If they are less fresh or were bought frozen, make sure they are cooked through.
When the scallops are browned, turn off the heat and sprinkle with a little shichimi tougarashi or chili pepper flakes to taste.
Serve the scallops and nori rectangles on separate plates and assemble right before eating: place a scallop on one end of a nori rectangle and fold the other end over it to make a sandwich. Pop into your mouth and enjoy!