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

5.0
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In-N-Out’s Double-Double Animal-Style Burger has 2 beef patties fried in mustard, caramelized onions, cheese, and special mayo-ketchup sauce in addition to all the fixings of a regular burger.

By Nicole Hopper
Updated on February 28, 2023
3 cheese burgers bird's eye view on checkered table cloth with fries
2
Prep Time:
20 mins
Cook Time:
40 mins
Total Time:
1 hr
Servings:
4
Yield:
4 burgers
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Ingredients

Original recipe (1X) yields 4 servings

  • 1/2 cup mayonnaise

  • 1 1/2 tablespoons ketchup

  • 1 tablespoon pickle relish

  • 1 teaspoon sugar

  • 3/4 teaspoon white vinegar

  • 1 tablespoon butter

  • 1 tablespoon canola oil

  • 3 cups fineley chopped yellow onions

  • 3/4 teaspoons salt, divided

  • 4 tablespoons water, or as needed

  • 1 lb ground chuck or 80% lean ground beef

  • 1 teaspoon canola oil

  • 1/2 teaspoon black pepper

  • 3 tablespoons mustard

  • 8 slices American cheese

  • 4 hamburger buns, toasted

  • 16 dill pickle chips

  • 4 slices tomato

  • 2 leaves iceberg lettuce, torn

Directions

  1. Stir together mayonnaise, ketchup, relish, sugar, and
    vinegar in a small bowl for the sauce.

  2. Heat butter and 1 tablespoon oil in a nonstick skillet
    over medium heat. Add onions and season with ¼ teaspoon salt. Cook, stirring occasionally, until onions are tender and golden brown, about 20 minutes. When skillet starts to become dry, add 1 tablespoon water. Continue cooking, stirring often, adding more water as needed, 1 tablespoon at a time, until onions are very soft, deeply browned, and jammy, 10 to 15 minutes more. You may not need to use all the water. Remove from heat.

  3. Shape beef into 8 patties, about 3/8-inch-thick and 4
    inches in diameter. Sprinkle with pepper and remaining 1/2 teaspoon salt.

  4. Heat 1 teaspoon oil in a large cast-iron skillet over
    medium-high heat. Working in batches as needed, add patties to skillet. Spread 2 teaspoons mustard over top of each patty. Cook until browned, about 2 minutes per side. Top patties with cheese and onions. Cook, covered, about 30 seconds, until cheese is melted. An instant-read thermometer inserted into the center should read at least 160 degrees F (70 degrees C). Layer patties to create 4 stacks.

  5. Spread sauce onto bun bottoms. Fill each bun with 4 pickles, a tomato slice, lettuce, and 1 patty stack.

Nutrition Facts (per serving)

951 Calories
60g Fat
56g Carbs
47g Protein
Nutrition Facts
Servings Per Recipe 4
Calories 951
% Daily Value *
Total Fat 60g 77%
Saturated Fat 19g 94%
Cholesterol 151mg 50%
Sodium 1968mg 86%
Total Carbohydrate 56g 20%
Dietary Fiber 5g 17%
Total Sugars 19g
Protein 47g 93%
Vitamin C 13mg 15%
Calcium 745mg 57%
Iron 6mg 35%
Potassium 1032mg 22%

* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

** Nutrient information is not available for all ingredients. Amount is based on available nutrient data.

(-) Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.