McDonald's have revealed the secret ingredient that makes their fries so addictive

As soon as we see the big golden arches we all start randomly craving their fries - and now we know why.

On the company's website, the flavour is listed as containing "hydrolysed wheat and hydrolysed milk as starting ingredients”, which combine to make a "natural beef flavour".

This process creates a meaty taste within the fries, something that makes them different from other fries that are out there.

If you want to learn more about the wondrous fries, or just are a McDonald's enthusiast, here's a video of the whole process.