The video was posted in response to a question asking, "What are legitimately in mcnuggets is there pink goop?"
The short answer is they're pretty much made like any other frozen chicken nuggets.
The long answer is this almost 3-minute video:
They also show how they de-bone a chicken (which is also useful for food prep at home). The following video was posted in response to the question "Do you actually put the whole chicken in and mix it to make chicken mcnuggets? That's what they say in school."
