[mumrah]

I would guess they have injectors for the filling at the centers of those cells. A Voronoi edge is equidistant from the two points it bisects, so it kind of makes sense that this would happen naturally if the filling is injected at a constant rate.

[drostie]

I'd guess more likely that they are chocolate nozzles -- it seems more straightforward to me to produce a precise chocolate "cup", pour or place the filling inside of it, then pipe a chocolate "lid" onto the cup. Presumably the multiple nozzles of chocolate would help it to settle flatter faster.

Edit: there's a video on Facebook that covers the whole process in a minute. My hunch is partly right: the wrapper and chocolate cup are indeed completed first, then a circle of peanut butter is indeed placed in, then the thing is shaken to encourage that peanut butter to fill the space uniformly. However the chocolate "lid" is just plopped on as one wide dollop from a hose, and then blown out across the cup with compressed air: so the Voronoi cells probably come either from this blowing phase, or else the hose has some sort of "spreader" inside of it or so.

[barrkel]

I wasn't aware there was anything below the chocolate-like surface, so I understood you to be saying the same thing as grandparent.

[binarymax]

Which country are you in? If you like chocolate and peanut butter (and sugar), I recommend trying a Reese's cup :)

[cup-of-tea]

> (and sugar)

That's the important part. Oh and you should like butyric acid too (most commonly found in vomit).

I love chocolate and peanuts. Can't stand any chocolate flavoured "candy" coming from the US.

[barrkel]

I am in the UK, and I cannot eat nuts.

[binarymax]

Well you're not missing out that much. USA chocolate isn't nearly as good as UK chocolate.