Surely Wikipedia would mention such a unique property if it were true, but I can't find a mention of that an ingredient for kit kats is a (fractional) kit kat on https://en.wikipedia.org/wiki/Kit_Kat

I really want to believe this :(

This would transform the dependency graph from a DAG to one with cycles and thus the recipe could not be resolved

A small trick can help.

A Kit-Kat bar consists of some external components, like wafers and chocolate. It's only the combination that turns them into a bar.

So you can bootstrap production by grinding the components and mixing them: it produces a Kit-Kat bar in a ground state. After that, you can produce more and more nominal-state bars.

So... Kit-Kats are impossible! Yet they exist, a miracle!

They are not impossible. It takes a fraction of a Kit-Kat to make a Kit-Kat.

But nobody can build them from scratch. If at any time they are all eaten, that's it!

It’s like a self compiling compiler that can’t be bootstrapped!

How was the first KitKat built then?

There was no “first” KitKat! What a silly strange deranged heretical thought!

Perhaps you are confusing the (discarded, and rightly so!) Unified Linear Field Theory with the (universally accepted, as it should be!) Unified & Closed Modular Field Theory?

Time ultimately, like all dimensions, is a meaningless loop. Of Kit-Kat’s.

Leaving only one last physics question to settle definitively, by prose, coercion, poison, blade, and projectile: Do the Kit-Kats form a Dünkin torus or a Möbius strip?

Entire schools of sugary confectionary thought hang in the balance!

The first KitKat wasn't as good as the latest KitKat, as it wasn't KitKat enough

So then as every KitKat is produced, we are approaching the ideal KitKat?

I think KitKat already peaked when Melon KitKat was released.

It’s KitKats all the way down

Which came first, the filling or the kit-kat bar?