Uni, I love how condensed milk is your answer to a failed batch of this sesame seed slice - I'm sure it will taste lovely and you have then created another recipe altogether.
Mine is fine. It does crumble a little when cut but not like your Uni. I did mix it for a good minute to make sure it was combined. I also did Amy's tweaks with almond meal and chia inclusions. DS3 loves it and DS5 (the princess) thinks it is bird seed and it scratched his throat on way down.