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Juicy and flavorful cheeseburgers fresh off the grill! These copycat In n' Out Cheeseburgers taste just like the ones from the famous fast food chain!
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5 from 4 votes

In-N-Out Cheeseburgers

A copy-cat version of the popular cheeseburgers from In-N-Out!
Prep Time 20 minutes
Cook Time 10 minutes
Servings 4
Author Holly

Ingredients

Secret Sauce

  • 1/3 cup mayo
  • 2 tablespoons ketchup
  • 2 teaspoons dill pickle relish
  • 1 tsp mustard
  • 1/4 tsp paprika

Cheeseburgers

  • 1 pound lean ground beef
  • 1 egg white
  • 1 small yellow onion grated (about 1/2 a cup)
  • 1/2 teaspoon seasoned salt
  • 1/2 teaspoon fresh ground pepper
  • 1 Tablespoon Worcestershire sauce
  • 4 slices American cheese
  • 4 hamburger buns seedless

Instructions

Secret Sauce

  • Mix all of the ‘secret sauce’ ingredients in a medium bowl. Refrigerate until ready to use.

Cheeseburgers

  • In a large bowl, add the ground beef, egg white, grated onion, Worcestershire sauce, seasoning salt and pepper. Using your hands or a fork, gently mix together. Shape mixture into 4 thin patties.
  • Place patties on an outdoor grill or skillet and cook until no longer pink on the inside. About 3 to 5 minutes per side. Place one piece of American cheese over the burgers during the last minute of grilling.
  • Toast the hamburger buns. Spread the secret sauce on each inner bun. Place grilled patties on bottom bun and top with lettuce, tomato and onion. Enjoy!