Here's how Shake Shack really compares to In-N-Out

Talk to any fast food aficionado about their favourite hamburger and they will likely name Shake Shack or In-N-Out Burger at the top of their list. So during a trip to Las Vegas, one of the few cities where you can find both of the burger chains, we decided to try a side-by-side comparison to see which burger triumphed.

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