Nagasaki Hatoshi — Shrimp Toast Sandwiches

Finely chop the onion and fry over medium heat for about 10 minutes, then cool. Puree half the shrimp and squid with the mayonnaise, salt and pepper; coarsely chop the rest. Mix all the seafood with the onion and chili.

Spread between pairs of bread slices to make 2 sandwiches. Wrap only in material rated for steaming; food-safe steaming parchment is a home-kitchen alternative to the source plastic wrap. Steam for 8 minutes, continuing if needed until the seafood is fully cooked.

Unwrap and dry the outside. Fry at 180°C until crisp and golden, then drain and cut to serve.