4) I usually add some grated cheese to the top of mine (hubbie does not like cheese so none on his).
This time I also added a few drops of hot sesame oil to the top of each dish to spice them up. Hot sesame oil is a spicy red-coloured sesame oil available for puchase in small bottles (usually from Asian supermarkets). In Japanese it is known as Ra-Yu. You can also buy Korean versions.
5) Put the grattan dishes into a moderate overn (180 degrees C) for approx 15 mins or until curry is warm through and breadcrumb topping looks crunchy (& cheese has melted). Delicious and easy.