List of In-N-Out Burger Secret Menu Items

California-based fast food chain In-N-Out Burger is well-known for having a secret menu. In-N-Out Burger probably has the smallest basic menu of any food establishment in history - just burgers, fries, drinks and shakes. That's it. No chicken or salads or soup or other sides.

But that menu grows when you consider the secret items. The secret menu isn't so secret anymore, as parts of it are now published on the company's website. But that information is incomplete. Here's the full list of items on the In-N-Out Burger secret menu.

2x2, 3x3, 4x4 burgers
Hamburgers generally come with lettuce, tomato, onions and spread, a mixture similar to Thousand Island dressing. If you want more than a basic burger, try the 2x2, which contains two patties and two slices of cheese. Similarly, the 3x3 has three of each and the 4x4 has four.

In the past, customers could go as high as they wanted with this variation. One man ordered a 20x20. But after someone ordered a 100x100, management decided that 4x4 would be the largest sandwich they would offer. (You just know someone would have eventually ordered a 1000x1000 if the company hadn't added the restriction...)

You can get something like a 4x2 if you want four burgers and only two slices of cheese, but it's rare to hear about anyone using mismatched numerals.

Protein style
The Atkins craze a few years back emphasized eating more protein and fewer carbs, which made the In-N-Out Protein Style burger a popular choice. A protein style burger features no bun, just the sandwich wrapped in a lettuce leaf.

I ordered a protein style 2x2 not long ago. It was a mess, since it inevitably fell apart, but it sure was tasty.

Animal style
An animal style burger is one that has the cheese, spread, onions and pickles are all combined into one hearty sauce and drizzled over a mustard burger. It's a popular choice. Just as popular are Animal style fries, which are just French fries with that big saucy mess on top. Yum!

Pickles aren't part of the normal In-N-Out sandwich, so they're a little bonus.

Flying Dutchman
The Flying Dutchman is a 2x2 burger with no bun or vegetables. Just two patties and slices of cheese. I can't imagine why anyone would want this, but it's your right as an In-N-Out customer to select this secret menu option.

Well-done, light and cheese fries
You can choose to have your In-N-Out French fries lightly cooked or overcooked by requesting well-done or light. Personally, I enjoy the well-done fries. They're very crunchy, almost like giant potato stix.

In addition to the animal style fries mentioned above, you can also order cheese fries, which is exactly what it sounds like.

Neapolitan milkshake
Here's my favorite secret menu item. Why choose from a vanilla, chocolate or strawberry shake when you can get all three in one fantastic cup? You can also get half vanilla, half chocolate. Or whatever combination you feel like. Then there's the root beer float, with soda and ice cream.

That trick works with soft drinks, too. If you want half lemonade and half iced tea, just ask. The Lemon-Up, for instance, contains lemonade and 7-Up.

Veggie burger / grilled cheese
The veggie burger isn't a burger at all - it's just the basic sandwich - minus the meat. So you get lettuce, tomatoes, sauce and onions on a bun. If you want cheese as well, order the grilled cheese.

Other variations & conclusion
If you can think of something that isn't listed here, In-N-Out is usually willing to make it for you. Requesting "Extra Toast" means they'll grill your bun a bit longer. You can request yellow peppers or pickles on a burger. You can request to have your onions raw instead of grilled, or to have no salt on your fries.

There's a reason In-N-Out Burger is an institution on the west coast. Besides using fresh ingredients, the company's (sort of) secret menu makes eating there fun.

In-N-Out Burger Secret Menu: Sources
http://www.in-n-out.com/menu.asp
http://www.badmouth.net/in-n-out-the-20x20
http://www.whatupwilly.com/2006/01/in-n-out-100x100.html