Saturday, July 24, 2010

Kenji Alt's In-N-Out Double-Double Animal Style at Home

Hello all... i know i haven't posted in some time, but sometimes life takes you in other directions and one must prioritize, prioritize, prioritize... but enough of my rationalizations...

I think the posting below from "The Burger Lab" guru from Serious Eats' A Hamburger Today page, Kenji Alt is a very fitting posting to represent my prodigal return. If you enjoy what you read you might want to check out Kenji's own site. In addition to being a regular contributor to Serious Eats, he has his own page, Good Eater Collaborative, as well. It is well worth checking out.

Though i live in Southern California and can hop in my ride and go to the iconic In-n-Out anytime i please, i do fear a day when career and circumstance might take me from the sunny shores of California. In that eventuality, I know I will now have a go-to guide if i want to try to replicate what i think is, without a shadow of a doubt, the very best "fast food" style cheeseburger you can get for under $3.25.



The Burger Lab: The Ins-n-Outs of an In-N-Out Double-Double, Animal-Style

It's time for another round of The Food Lab. Got a suggestion for an upcoming topic? Email Kenji here, and he'll do his best to answer your queries in a future post. Become a fan of The Food Lab on Facebook or Twitter for play-by-plays on future kitchen tests and recipe experiments.


Gone animal. [Photographs: Kenji Alt]

In-N-Out's Double-Double, Animal Style at Home


[Photograph: Kenji Alt]

Want more details? Here are the ins-n-outs.

- makes two 1/4 pound burgers -

Note: store-bought ground chuck can be used in place of the fresh ground, but I highly recommend grinding your own!


1/2 pound fresh beef chuck with plenty of fat, cut into 1-inch cubes
2 teaspoons vegetable oil, divided
1 large onion, finely chopped (about 1 1/2 cups)
Kosher salt
2 tablespoons plus 2 teaspoons mayonnaise
1 tablespoon ketchup
2 teaspoons sweet pickle relish
1/2 teaspoon sugar
1/2 teaspoon distilled white vinegar
2 soft Hamburger buns, preferably Arnold brand
Freshly ground black pepper
8 dill pickles chips
2 quarter-inch-thick slices ripe tomato
2 leaves fresh iceberg lettuce, white core section removed, torn to bun-sized pieces
1/4 cup yellow mustard
4 slices deli-cut American Cheese

Procedure (Meat Grinder)

1. Place feed shaft, blade, and 1/4-inch die of meat grinder in freezer until well-chilled. Meanwhile, place meat chunks on rimmed baking sheet, leaving space between each piece and place in freezer for 10 minutes until meat is firm, but not frozen.

2. Combine meat in large bowl and toss to combine. Grind meat and refrigerate immediately until ready for use. Handle as gently as possible. Proceed with step three below.

Procedure (Food Processor)

1. Place bowl and blade of food processor in freezer until well-chilled. Meanwhile, place meat chunks on rimmed baking sheet, leaving space between each piece, and place in freezer for 10 minutes until meat is firm, but not frozen.

2. Combine meat in large bowl and toss to combine. Working in two batches, place meat cubes in food processor and pulse until medium-fine grind is achieved, about 8 to 10 one-second pulses, scraping down processor bowl as necessary. Refrigerate ground meat immediately until ready for use. Handle as gently as possible.

3. Preheat the oven or toaster oven to 400 degrees while you cook the onions: Heat 1 teaspoon oil in a 10-inch non-stick skillet over medium-high heat until shimmering. Add onions and 1/2 teaspoon salt to skillet. Reduce heat to medium low, and cook, tossing and stirring occasionally until onions are well browned, about 15 minutes. Once onions begin to sizzle heavily and appear dry, add 1 tablespoon water to skillet and stir. Continue cooking until water evaporates and onions start sizzling again. Repeat process, adding 1 tablespoon of water with each iteration until onions are meltingly soft and dark brown, about 3 times total. Transfer to a small bowl and set aside.

4. Make the sauce: Combine mayonnaise, ketchup, relish, sugar, and vinegar in small bowl. Stir to combine.

5. Place closed buns in preheated oven for 2 minutes until slightly darkened and crisped. Heat 1/2 teaspoon oil in 12-inch non-stick skillet or griddle over medium-high heat until shimmering. Open buns and add face-down to skillet. Toast until dark brown around the edges, about 1 minute total.

6. Form ground beef into four 2-ounce patties, using damp hands to press each into a patty about 3/16ths of an inch thick and 4 inches wide. Season generously with salt and pepper. Add remaining 1/2 teaspoon oil to pan, swirl to coat, and heat over medium-high heat until lightly smoking. Add burger patties and cook without moving until well browned and crusty on first side, about 2 1/2 minutes. While they are cooking, spread 1 tablespoon mustard on raw side of each patty with a spoon. Meanwhile, top each bottom bun with up half of spread, 4 slices pickles, 1 slice tomato, and lettuce. Flip patties with a thin spatula so mustard side is down and continue to cook for 1 minute. Top each patty with a slice of cheese. Divide onion mixture evenly between two patties. Place the other two patties directly on top of the onions , sandwiching them between the beef. Transfer patty stacks to bottom bun. Top with top bun, and serve immediately.


You West Coasters have it easy. Your dogs have yards to run in. Your grapes have vines to grow on. You get to watch the sun setting and the ocean at the same time. You're never faced with the tough decision of Motorino Brooklyn or Motorino Manhattan. Even the darn earth's rotation goes in your favor, letting you sleep three hours later than me every single morning!

And all that before we even mention In-N-Out, perhaps the second most compelling reason to move out west like my wife would like me to*.

I've been a rabid, if underexposed fan of the cult-ish fast food burger joint since I tried my first Double-Double (that's two patties, two slices of cheese) a couple years back. As burgers go, it's an oddity in my book, in that it's not about the beef.

It's a bomb that's rigged to hit every pleasure center on my brain's taste analyzation terminal

Sure, the fresh-never-frozen patties are tasty enough, but the sandwich is more than that. It's the interplay between the ooey-gooey American cheese, the sweet, darkly-toasted bun, the juicier-than-average tomatoes, the crisp iceberg, the full, un-separated-into-rings slice of onion, and the all-important sweet, tangy, pickle-laden Spread. It's a bomb that's rigged to hit every pleasure center on my brain's taste analyzation terminal (by which I mean my tongue). Salty, sweet, savory, soft, crisp, and fresh. "Overrated", people say? I think not. Let me quote the much more eloquent Nick Solares in saying "In-N-Out at the very least represents the platonic ideal of what a fast food hamburger should be."

Order the burger "Animal Style" off of their not-so-secret menu, and you bring the party to a whole new level. The onion slice gets replaced with a dollop of a sweet, darkly caramelized chopped onions, an extra stack of pickle chips goes underneath the tomato, and the patties get fried with mustard directly on the griddle.

But here's the thing: I've had my share of regular In-N-Out burgers, but never an Animal Style. That's something that needed to change, and stat.

Of course, the biggest problem with In-N-Out is that due to their commitment to freshness, they have a policy of never opening up a location that's not within a day's drive of their meat processing plant in Baldwin Park, California. For us East Coasters, that leaves two options: We lobby to put money into revolutionizing our ground transportation system and wait, or we get off our a*ses and try and make the darn things ourselves.

Option 2 sounds much more fun to me.

Fresh Frozen

Before I could begin, I'd need to get a good model to work off of.

The Mission: Get a West-Coast-only In-N-Out Animal Style Double-Double to my New York front door with less than 24 hours notice. There was only one man up to this job: I put in a call to my former MIT colleague Marios Assiotis. There are certain things that slightly nerdy Cypriot expats living in San Francisco and working for Microsoft are particularly cut out for.
Needless to say, he jumped at the excuse to hit In-N-Out. $120 in overnight delivery fees later, the UPS man showed up at my door at 9:30 the next morning, golden package in hand.** Inside were two regular Double-Doubles, two Animal Style Double-Doubles, two plain cooked beef patties, two packets of Spread, and one large chunk of dry ice to freak out Dumpling with.

I knew that the flavor of a frozen-then-thawed burger could never compare to the freshness of the original, but nevertheless I felt compelled to resurrect them—not a minor feat in and of itself!

After a totally failed attempt at reheating one whole, I realized that the best way is to separate it into individual components, and reheat each individually, tossing the veg and replacing them with fresh ones. Within the hour, I had my lunch of Zombie In-N-Out burgers:


Why did you disturb my peaceful slumber? [Photograph: Kenji Alt]

Delicious? Certainly. As good as real? Absolutely not. But still, as a research tool to base the rest of my fresh sandwich construction on, it was invaluable.

Spread 'em

I never understood why In-N-Out refers to their sauce as "Spread". Maybe they're just a little too cool for school. In any case, all it is is a basic Thousand Island-style dressing: a mixture of ketchup, mayonnaise, and sweet pickle relish. But as anyone from the Thousand Islands will tell you, not all dressings are created equal. What's the exact ratio of ketchup to mayo? Are there other seasonings involved?

Now, gifted as I am with an extraordinarily delicate and precise palate, I could do this the artistic way, tasting the path to victory, adding a little of this and a bit of that until I'd achieved a good enough balance. But the inner nerd in me is always seeking ways to express itself, so I decided to take the mathematical approach.


According to the In-N-Out nutrition guideline, replacing the Spread with ketchup results in a decrease of 80 calories per sandwich. I know that ketchup has about 15 calories per tablespoon, so If we estimate that an average sandwich has about 2 tablespoons of sauce on it (that's the amount that's inside a single packet), then we can calculate that the Spread has got about 55 calories per tablespoon (110 calories in two tablespoons of Spread minus 30 calories in 2 tablespoons of ketchup = 80 calories difference in the sandwich). With me so far?

It just so happens that relish has about the same caloric density as ketchup (15 calories per tablespoon), and that mayonnaise has a caloric density of 80 calories per tablespoon. Using all of this information and a bit of 7th grade algebra, I was able to quickly*** calculate that the composition of the Spread is roughly 62 percent mayo, and 38 percent ketchup/relish blend:


To calculate the ratio of relish to ketchup, I washed two tablespoons of Spread through a fine mesh strainer, which got rid of the mayo and ketchup, but kept the pickle particles. Two tablespoons of rinsed Spread resulted in 1 teaspoon of strained pickle relish.

So the final Spread formula (rounded to the nearest convenient measure) was: 2 tablespoons plus 2 teaspoons mayonnaise (62 percent), 1 tablespoon ketchup (23 percent), and 2 teaspoons pickle relish (15 percent). Damning the math, I also decided to add a tiny splash of vinegar and pinch of sugar to round out the flavors before moving on to the next phase of the operation.

Sweet Success


A regular Double-Double gets a full slice of onion in between the two patties. Upgrade to an Animal style, and those onions come intensely caramelized, their sweet complexity playing perfectly off the beefy patties. We're talking onions slow-cooked to oblivion, French-onion soup style. They're melted into a near fondue-like consistency.

I've had some experience cooking onions, but my first try at these, done by simply slow cooking a fine dice of onions in a little oil fell miserably short. They were brown alright, but they still had a distinct, crunchy, oniony texture. I was cooking them over the lowest heat possible, but they simply weren't melting—they were threatening to burn before they were sufficiently broken down.

if onion soup-like texture is what I'm after, why don't I use the onion soup method?

Then I thought—if onion soup-like texture is what I'm after, why don't I use the onion soup method? I slowly caramelized onions in a little oil, then deglazed the pan with a little water and repeated this process several times, allowing the liquid to evaporate and the onions to brown further with each iteration. By doing this, the onions cool as they cook, allowing for slower caramelization, as well as distributing the browned sugars more evenly throughout the mix, improving texture and flavor.


That's 6 whole onions there, cooked down to a single cup of meltingly sweet, spreadable jam.

The Smoking Bun

In-N-Out has their buns custom made for the restaurant, and I briefly considered baking my own buns for this process, but decided against it. I can bake a good loaf of bread, but I've never come across a recipe for a soft, squishy burger bun that's an improvement on the supermarket offerings. To my mind, a Martin's potato roll or an Arnold burger bun is the apex of its form. Just like toilets or my mom's dumplings, the best you can hope for by making them yourself is an interesting variation, not an improvement.


I scanned the supermarket shelves with my frozen Double-Double in hand until I found a bun that matched it perfectly in size: Arnold it is.

The only issue is that the In-N-Out buns are a little darker. A two-minute stay in a 400 degree oven (I used my toaster oven) solved that dilemma handily. And like all good buns, these ones get toasted—nearly burnt in fact. It adds a key component to the flavor, and helps solidify its structure, crucial to keeping the torrent of gooey juices at bay.

How Fatty's the Patty?

Next up: the beef. This was going to be a little bit tougher. All I knew so far from the In-N-Out Food Quality page was that the beef is 100 percent ground chuck and that it's never frozen. That leaves a lot of room for interpretation. How big are the patties? What's the fat ratio?


Well, sizing the suckers was no problem. I simply had my good man Marios ship a couple of cooked plain patties. They both weighed in at precisely 37 grams (1.3 ounces). Accounting for the standard 35 percent loss**** in weight for a well done thin patty, that kicks us up to 57 grams or exactly 2 ounces pre-cooking—that's 1/4 pound for a Double-Double.***** A nice, round number.

As for fat content, it was time to break out the math guns again. My goal was to figure out the amount of fat vs. protein in a single In-N-Out patty. The information I have from their Nutrition Guide:

  • A single burger: 16 grams of protein and 19 grams of fat
  • A single cheeseburger: 22 grams of protein and 27 grams of fat
  • A Double-Double: 37 grams of protein and 41 grams of fat

By subtracting the value of a hamburger from that of a cheeseburger, we can calculate that a single slice of cheese contains 6 grams of protein and 8 grams of fat. Then, subtract the value of a cheeseburger plus the value of a slice of cheese from the value of a Double-Double, and you've got the fat and protein makeup of a single burger patty. It breaks down to 9 grams of protein and 6 grams of fat. Not accounting for both moisture loss and fat rendering during cooking (which in my experience is about equal), that leaves you with a 60 percent lean, 40 percent fat beef blend—a far higher fat percentage than any store-bought ground chuck. No wonder the things are so-darned delicious!

This could mean only one thing: I'd have to grind the beef myself.


I went to the butcher and got the fattiest chuck steaks I could find and ground them without trimming away any of the excess fat.

And by the way, if any of you are still buying pre-ground beef, you should stop this instant! Grinding your own meat is super easy, and is the single best way to give any burger an instant and gigantic upgrade in quality. Do it.

The Full Cast


  1. The patties: 2 ounces each, pressed flat to 4-inches in diameter
  2. The bun: Arnold, toasted whole in a 400 degree oven for 2 minutes, cut sides toasted on a lightly greased hot skillet until dark brown
  3. Pickles: Standard on the Animal-style burger. Four dill chips
  4. Real American cheese: Thick-sliced, from the deli
  5. Black pepper: Fresh ground
  6. Kosher salt: Lots.
  7. Iceberg lettuce: Fresh, leaves picked, core removed, torn to bun-size
  8. Tomato: The best hothouse tomatoes I could find, sliced 1/4-inch thick
  9. Spread: Tangy, sweet, creamy, delicious
  10. Caramelized onions: The stuff dreams are made of
  11. Yellow mustard: Signature Animal-Style trick (more on this later)


After carefully studying photographs and performing several meticulous autopsies on my frozen burger cadavers, I derived that the sandwich is built by first laying a mortar foundation of 2 tablespoons sauce on the toasted bottom bun, along with a layer of pickles slices for the Animal Style version. Next comes the tomato, followed by the lettuce.

As for the patties, Animal Style is described only as "mustard grilled," which in my book, is not all that well defined. For the complete rundown, I turned again to my spy network (a.k.a. my Facebook fan base) for support. I was almost immediately aided with photos (thanks Joe Sparks!) and detailed descriptions from past (thanks Dave Tytell!) and current employees.


The process is simple: Sear the patty on one side, and squirt some mustard on it as it sizzles. Flip the patty over so that the mustard cooks into the second side.

The patties are covered with the cheese, then the caramelized onions are applied liberally to a single patty before topping it with the second, fusing all the elements together into a single cheesy, beefy, sweet, oniony, gooey, salty, oozy, crispy, meaty, savory, melty, delicious mess. American food don't get much better than this!


So there I had it: my first taste of an honest-to-goodness, scientifically re-constructed Animal Style Double-Double clone. Would it compare with the real thing? Honestly, I didn't care—it was that good******.

Indeed, the only thing I can think of that would improve this burger is if it were available across the entire nation or—dare I say it?—the world. Don't you just love the internet?

Now about those Animal Style fries...

* Reason #1 is the burger at Pie 'n Burger in Pasadena

** If anyone has ever wondered what's in the Pulp Fiction Briecase, it's frozen In-N-Outs.

*** Full Disclosure: I completely forgot 7th grade algebra, spent 30 minutes trying to figure this out, then gave up and emailed my really smart wife.

**** Which I've calculated through ruthless efficiency and an almost fanatical devotion to the burger

***** The same size as a Shack Burger, by the way. And a Quarter Pounder, for that matter.
****** Still, if anyone in CA feels like going on joining me for an In-N-Out run to do an actual side-by-side tasting next time I'm there, I'm game!

Continue here for a Homemade In-n-Out Animal Style Double-Double »

Follow Kenji on Facebook or Twitter. About the author: After graduating from MIT, J. Kenji Lopez-Alt spent many years as a chef, recipe developer, writer, and editor in Boston. He now lives in New York with his wife, where he runs a private chef business, KA Cuisine, and runs the collaborative blog about sustainable food enjoyment.

1 comment:

Syber said...

Thanks a lot.......... Very useful site......