Secret menu hacks: In-N-Out Burger fan favorites
Long-time fans of the In-N-Out Burger are likely familiar with the “not so secret menu.” According to the Southern California-based fast food chain’s website, these unofficial items include Double Meat, 3×3 or “Triple Triple”, 4×4 or “Quad Quad”: all options for how many patties you can get added to your burger. Additionally, it includes a…
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