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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 3 votes

In-N-Out Cheeseburgers

A copy-cat version of the popular cheeseburgers from In-N-Out!
Prep Time 10 minutes
Cook Time 10 minutes
Total Time 20 minutes
Servings 6
Author Holly

Ingredients

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

SECRET SAUCE

  • 1/3 cup Mayo
  • 2 tablespoons Ketchup
  • 2 teaspoons Dill Pickle Relish
  • 1 tsp Mustard
  • 1/4 tsp Paprika

Instructions

  • TO MAKE SECRET SAUCE: Mix all of the ‘secret sauce’ ingredients in a bowl. Refrigerate until ready to use.
  • DIRECTIONS FOR BURGERS: In a large bowl, add ground beef, egg white, grated onion, worcestershire sauce, seasoning salt and pepper. Using your hands or a fork, gently mix together. Shape mixture into 6 thin patties. Place patties on grill or skillet and cook until no longer pink on the inside. About 3-5 minutes per side. Place one piece of american cheese over the burgers during the last minute of grilling.
  • Spread the secret sauce on each inner bun. Place grilled patties on bottom bun and top with lettuce, tomato and onion. Enjoy!