This is a homemade version of the In-N-Out Double-Double: two thin smashed beef patties, two slices of American cheese, and a tangy spread on a toasted bun. The honest reason to make it at home is control — you get the patty size, the spread ratio, and the doneness exactly where you want them, and the whole thing comes together in under 20 minutes once your mise en place is set.
Smart swaps
- Ground beef: 80/20 ground chuck is the standard call here. Leaner blends dry out fast on a hot skillet — don’t go below 80/20.
- American cheese: Use deli-sliced American, not the individually wrapped singles. It melts cleaner and has better flavor. White American works fine if that’s what you have.
- Sweet pickle relish (for the spread): If you only have dill relish, add a small pinch of sugar to compensate. The spread needs that slight sweetness to taste right.
- Iceberg lettuce: Romaine is a workable substitute for crunch, but iceberg stays colder longer and holds up better against a hot patty. It’s worth grabbing the right one.
- Buns: Standard soft hamburger buns are correct here. Brioche buns are too rich and compete with the spread — skip them for this recipe.
The short version of why this works
Two things actually drive the result. First, the smash: pressing the loose beef ball firmly onto a screaming-hot skillet maximizes contact with the surface, which means more Maillard browning and a crispier edge on a thin patty. Second, the cheese timing — laying a slice on each patty while it’s still on the heat, then covering the pan briefly, gets you fully melted cheese without overcooking the beef. Both patties hit 160°F (71°C) internal before they come off. Everything else — the spread, the toppings, the bun toast — is assembly, and assembly is forgiving. The cook is not.
What can go wrong
- Patty sticks to the spatula when you smash: Press with the flat side of a heavy metal spatula and hold it down for a full 10 seconds before releasing. If it tears, your skillet wasn’t hot enough — let it preheat longer next time.
- Spread makes the bottom bun soggy: Apply the spread to the bun right before assembly, not in advance. If you’re building multiple burgers for a group, toast the buns last.
- Onions are too sharp: Raw onion can overpower everything else. A 10-minute soak in cold water mellows the bite significantly without losing the crunch.
- Cheese doesn’t fully melt: After placing the cheese slice, add a few drops of water to the edge of the pan and cover immediately. The steam does the work in about 30 seconds.
- Burger falls apart when you pick it up: Stack order matters. Spread on the bottom bun first, then lettuce, then pickles, then tomato — these act as a stable base. Patties go on top of that stack, not under it.
Make-ahead notes
The spread keeps well in the fridge for up to 5 days in a sealed container — make a double batch and you’re set for the week. Raw patty balls can be formed, loosely covered, and refrigerated for up to 24 hours; don’t press them flat in advance or they’ll lose the loose texture that makes the smash work. Cooked patties reheat reasonably well in a covered skillet over medium-low heat with a splash of water, but they do lose some of their crust — this burger is genuinely best eaten fresh off the pan. If you’re feeding a crowd, stagger your cooks in batches of two rather than trying to hold finished patties.
Homemade In-N-Out Style Double-Double Burger
Ingredients
For the Spread:
- ¼ cup mayonnaise preferably full-fat for creaminess
- 1 ½ tablespoons ketchup
- 1 teaspoon sweet pickle relish
- ½ teaspoon white vinegar
For the Burgers:
- 4 ounces ground beef 80/20 chuck blend, formed into 2 loose 2 oz balls
- 2 slices American cheese high-quality deli style American
- 2 pieces hamburger buns classic hamburger buns, lightly buttered
- 1 cup shredded iceberg lettuce as crisp as possible
- 4 slices dill pickles thin-cut
- 2 slices tomato ripe and thick-sliced
- ¼ cup yellow onion finely chopped
- 1 tablespoon unsalted butter for toasting buns
- 1 pinch salt to taste
- 1 pinch freshly cracked black pepper to taste
Instructions
- Prepare the spread by stirring together mayonnaise, ketchup, sweet pickle relish, and white vinegar in a small bowl. Set aside or refrigerate until needed.
- Toast the buns. In a skillet over medium heat, melt the butter and place each bun cut-side down to toast until golden brown. Remove and set aside.
- Prep lettuce, tomato, pickles, and chop onions. For a more authentic flavor, soak chopped onions in cold water for 5 minutes and drain to reduce sharpness.
- Heat a cast iron skillet or stainless steel pan over medium-high heat. Season the beef balls generously with salt and pepper.
- Add each beef ball to the hot skillet and immediately smash into a thin patty using a spatula. Cook undisturbed for about 1½ to 2 minutes until edges are deeply browned and crisp.
- Flip the patties, then immediately top each with a slice of American cheese. Cook for another 1 to 1½ minutes. Remove from heat.
- Assemble the Burger: Spread about 1 tablespoon of the spread on the bottom bun. Layer with shredded lettuce, tomato slices, pickles, and the first cheese-topped patty. Add a sprinkle of chopped onions, then the second patty. Crown with the top bun.
Notes
- To keep patties juicy, use 80/20 ground beef chilled until right before cooking.
- For true In-N-Out flavor, griddle the patties without oil for a deeper sear.
- For animal-style, add a handful of caramelized onions on top before placing the second patty.
Nutrition
Frequently asked questions
Can I use a regular nonstick pan instead of cast iron?
You can, but you’ll get less crust. Nonstick pans don’t hold or distribute heat as well as cast iron or stainless, so the Maillard browning on the patty edges will be noticeably weaker. If nonstick is all you have, preheat it longer than you think you need to and don’t crowd the pan.
How do I know when the patties are done without cutting into them?
Use an instant-read thermometer — ground beef needs to reach 160°F (71°C) internal. At that temp, the patties will also show no pink at the edges and the juices will run clear, but the thermometer is the only reliable check.
What’s the animal-style variation and what does it actually change?
Animal style means you spread a thin layer of yellow mustard directly onto the raw patty side before it hits the skillet, and you add caramelized onions plus extra spread. The mustard caramelizes into the crust and adds a tangy depth that the standard version doesn’t have. It takes about 15 extra minutes to caramelize the onions properly — don’t rush that step or they’ll just be soft, not sweet.
Can I make this with frozen beef patties to save time?
Frozen pre-formed patties won’t smash properly because they’re already shaped and partially frozen through. For this recipe, you need fresh loose beef balls so the smash technique actually works. Thawed patties that have been fully defrosted in the fridge overnight are a workable compromise, but fresh ground beef gives the best result.
Is this a full meal on its own or do I need sides?
Two patties and two slices of cheese make this a genuinely filling burger on its own for most people. If you want to round it out, oven fries or a simple green salad work well alongside without adding much prep time — the burger itself is done in under 20 minutes, so sides that can cook while you prep are the practical move.
If you liked this one
- Animal Style Burger Recipe
- Animal Style Cheeseburger Recipe
- Perfect In-N-Out 2×2 Copycat
- Ultimate Avocado Bacon Smash Burger