We just found out what's really in the Kit Kat filling. We don't even know who we are anymore.

For Kit Kat enthusiasts, most don’t have a whole lot of time between purchase and consumption to delve deep into the elusive magic of what they just ate.

It’s a bit chocolate-y, a bit wafer-y, breaks easily and melts quickly.

But after all, it’s not just a chocolate-covered wafer. Because then it would just be a chocolate-covered wafer.

So what actually makes a Kit Kat so uniquely, well, Kit Kat?

According to Nestle, the crispy wafers are moulded together with a “smooth and creamy chocolayer”. Which is particularly vague and unhelpful.

However, it seems the team at the BBC have a little more time to investigate than you or I, going to great lengths to uncover what actually lies between the wafer and under all that chocolate coating.

According to their Inside the Factory program, the BBC found the “chocolayer” is actually just a whole lot of smashed-up Kit Kats.

The runts of the Kit Kat litter are picked up by the quality assurance team after production if they aren't up to scratch.

The Kit Kats hit with the ugly stick could have defects that range from not being shiny enough to having too many air bubbles or off centre wafers.

So, instead of being thrown away and into the bin, Inside the Factory reports the rejects are recycled back into the production process by being ground into a fine past and filling the space between the wafer.

And that, friends, is why your Kit Kat is particularly soft to bite into.