These could possibly be the best biscuits there is. Used to get these same sorta biscuits about 15-20 year ago and not seen em since, except they had like ninja turtle pictures on the front of em then.
little light shortcake style biscuits with a soft chocolate filling in them. Pics in first comment.
Found em in the Leigh town centre store. had a shelf full of em. i ended up getting 12 boxes as don't think they'll stick around long.