In-N-Out Burger's famous secret menu is full of hidden deliciousness. The Flying Dutchman is a unique addition that caused a stir, so we decided to investigate.

It's no secret that In-N-Out has a secret menu, but the latest trend takes one of the burger chain's well-known menu hacks to a different level. But there's a catch - you've got to love onions. The ...

In-N-Out fans have discovered a new secret menu hack that has TikTok scrambling to get to the drive-through. The onion-wrapped Flying Dutchman burger was made popular by @diego_eats, who first shared ...

Two beef patties. Two slices of cheese in between the patties. If customers want to mix it up at In-N-Out, and don’t want bread to get in the way of their caloric experience, the Flying Dutchman is ...