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In-N-Out Burger Copycat Double-Double Animal Style
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4.97 from 28 votes

Double-Double Animal Style (In-N-Out Burger Copycat)

This burger has two beef patties fried in mustard, two slices of cheese, special sauce, pickles, tomatoes, lettuce, and caramelized onions, all on a toasted bun! Oh yeah...it is AMAZINGLY delicious!
Prep Time30 minutes
Cook Time20 minutes
Total Time50 minutes
Course: Main Course
Cuisine: American
Keyword: burgers
Servings: 4 Double Double Burgers
Calories: 670kcal

Ingredients

Beef Patties:

  • 1 pound ground beef I used 20% fat grass-fed beef
  • ½ cup yellow mustard
  • 8 Slices American Cheese I use Land-O-Lakes Deli Sliced
  • Salt & Pepper to taste

Secret Sauce:

  • cup mayo
  • 3 tablespoon ketchup
  • 1.5 tablespoon sweet pickle relish
  • 1 teaspoon sugar
  • 1 teaspoon white vinegar

Caramelized Onions:

  • 2 yellow onions finely diced
  • 1 teaspoon salt
  • 1 tablespoon oil I used canola
  • 3 tablespoon water

Buns & Toppings:

  • 4 soft plain hamburger buns
  • 4 teaspoon butter (about 1 teaspoon per bun)
  • 16 dill pickle slices
  • 4 slices tomato about ¼" thick (I used large beef steak tomato)
  • 8 leaves of iceberg lettuce torn

Instructions

Caramelized Onions:

  • Heat 1 tablespoon of olive oil in a large skillet, on Medium-High heat.
  • Add the diced onions and salt, and give it a good stir.
  • Reduce heat to medium/low. Cook, stirring occasionally, 15-20 minutes, or until onions are lightly browned.
  • Turn heat back up to Medium-High. Add 1 Tbps water, stir and let cook about 2-3 minutes until water evaporates (or until onions start to slightly stick to the pan).
  • Repeat 2 more times.
  • Store in a container until ready to use.

Special Sauce:

  • Add all ingredients for the special sauce in a bowl. Whisk until well combined. Cover, and store in the refrigerator until ready to use.

Buns:

  • Heat a skillet on Medium-High heat , add a little butter, about 1 teaspoon per bun. Toast the inside of the buns for about 1 minute, until the edges are dark brown (but not burned). Set aside.

Beef Patties:

  • Cut the beef into 8 pieces, and roll each piece into a ball.
  • Lay out a large piece of wax paper.
  • Flatten out a beef ball in your hands, lay on the wax paper and start shaping into a patty. You want it really thin, about 4” diameter, or slightly larger then the bun.
  • Repeat, until you have all beef patties laid out on your wax paper. Season them with salt and pepper.
  • Cut a square shape around each beef patty, then stack them on a plate.
  • Lightly oil a large skillet and heat on Medium-High for a few minutes (you want the pan hot before adding the patties).
  • Place 2 patties on the pan (seasoned side down), then quickly season the top with salt, pepper and 1 tablespoon mustard.
  • Cook until browned, about 2-3 minutes. Flip, then cook 1 minute.
  • Add sliced cheese on both patties.
  • Add 1 heaping tablespoon of caramelized onions on one patty, and stack the other patty on top. Remove the stack from the pan.
  • Repeat with the remaining patties.

Assembly:

  • Assemble the burgers in this order:
    -bottom bun
    -1 heaping tablespoon sauce
    -4 pickle slices
    -1 tomato slice
    -2 lettuce leaves, torn
    -double meat double cheese onion stack
    -top bun
  • All done! :)

Video

Notes

  • Read the notes in the post about doing prep work ahead of time! It will make the cooking process go a lot faster when it’s time to eat!
  • The burger patties are VERY thin when prepping, so keep the patty on the wax paper until you are ready to flip it on the pan. It will keep your patties from falling apart while laying them on the pan to fry! Watch the full Recipe Video to see the process.
Recommended Equipment:
(click the item if you need to order)
Cast Iron Skillet 12"
 

Nutrition

Calories: 670kcal