This is a delicious combination of seafood in fragrant homemade white (bechamel) sauce, turned into a rich and creamy gratin.
I made gratin with a homemade white sauce!
Use the same pan in Step 5 as you did for the white sauce from Steps 1-3 . I made the white sauce in a frying pan as the photos wouldn't have turned out well using a saucepan.
Enjoy Japanese food around the world.