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Posted on Jul 8, 2010

The Secret To The In-N-Out Burger

In a word: mustard. This is actually verified spy-like intel and not just chef guesswork, FYI.

by Amanda Dobbins

Community Contributor

"After the patty goes on the grill, smear just the raw side with a healthy dose of mustard before flipping. The Dijon flavor cooks off but the application deepens the flavor of the meat." Via.

The Secret To The In-N-Out Burger

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