The network's own Marc Summers recently revealed the ingredients in their famous concoction If you’re a millennial, you’ve probably wondered what exactly is in slime — the green mixture that ...

The slime recipe has never been revealed. But does it ever change from one year to the next? The recipe is a secret. Has your grandmother ever given up her famous apple pie or meatloaf recipe?

much like your grandmother’s famous recipe for apple pie, as Nickelodeon has told me in the past. When I inquired about the substance at the testing, I was playfully told that the slime is ...