Toast bread under a pre-heated grill until golden brown on both sides. Remove and trim the crusts off each slice. Using a bread knife cut each slice horizontally in two, so you have two very fine square slices. Grill the 'uncooked' side of each piece of toast until golden brown.
Thanks paperclip, you got there first!
I do mine in the toaster to start with, whilst the grill is heating up. Cuts a few mins off of the time.
I don't like melba toast out of a packet, but it's scrummy made properly ♥