The Aldi version of the cake may come from the same factory but will not come off the same conveyor belt, contain the same ingredients, be subject to the same quality standards, etc. My Mum was a surveyor for various food production companies and those lines produced for M&S were subject to different standards, produced in a separate part of the building etc. It is certainly not the same product in an Aldi box.
It looks rancid, doesn’t it?
I may be classed as a fake Scot but the idea of a battered Mars bar gives me the fear. Battered colin also gives me nightmares.