This dish goes down very well with chilled Japanese lager beer. Called Saba Tatsuta Agge, it is also excellent cold and is very good served with salad.
Using a pair of tweezers, remove any remaining bones from the mackerel. Cut the fillets in half lengthways, then slice diagonally crossways into bitesize pieces.
Mix the shoyu, sake, sugar, garlic, grated ginger and shiso in a mixing bowl to