This copycat In-N-Out Burger recipe has crispy-edged smashed beef patties, melty American cheese, caramelized onions, and that iconic secret spread. Swipe to make it!
WHY YOU'LL LOVE THIS RECIPE
Making this famous In-N-Out burger myself means I can tweak it—extra sauce, double onions, or even add jalapeños—without leaving my kitchen
In a bowl, whisk together mayo, ketchup, mustard, vinegar, relish, salt, and pepper. Chill in the fridge while you prep the burgers.
STEP 1: MAKE THE SAUCE
STEP 2: TOAST THE BUNS
Melt butter in the skillet and toast the buns cut-side down for 1–2 minutes until golden.
Spread sauce across the bun bottoms, then add toppings.
STEP 3: SMASH THE PATTIES
Place 2 beef balls in the hot skillet. Immediately season with salt and top with shaved onion slices. Press firmly with a spatula to smash into thin patties.
STEP 4: MUSTARD-GRILL AND FLIP
Drizzle mustard over each patty. Cook 1–2 minutes. Flip, top with American cheese, and cook another 30 seconds until the cheese is melted.
STEP 5: STACK & SERVE
For a double burger, stack two patties on each bun. Finish with the sauced bun tops and serve immediately while hot and melty.
PRO TIPS
- Heat the skillet until smoking for crispy brown patties
- Chill the sauce for 30 mins so the flavors meld
- Go Protein style and swap the bun for iceberg lettuce
THIS RECIPE IS ICONIC
Messy, indulgent, and incredibly satisfying—this copycat In-N-Out burger is everything a great burger should be.
GET THE FULL RECIPE
Want the full measurements, step-by-step instructions, and more tips? Click "learn more" or swipe up for the recipe.