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Copycat In N Out Burger Sauce

This creamy, tangy sauce tastes just like the secret spread from your favorite burger joint.

By Daily Recipes Book· 🌍 American· July 16, 2026
Copycat In N Out Burger Sauce
dailyrecipesbook.com
Prep
5 minutes
Cook
0 minutes
Total
5 minutes
Serves
4

There is something so special about that classic burger shop flavor. This simple sauce recipe captures the tangy and creamy taste that makes those burgers stand out from the rest. It is the perfect way to bring a little bit of fast food magic into your own kitchen.

My secret tip for the best flavor is to let the sauce sit in the fridge for at least thirty minutes before you serve it. This allows the onion and vinegar to really mingle with the other ingredients for a smoother taste.

Ingredients

  • 1/2 cup mayonnaise
  • 2 tablespoons ketchup
  • 1 tablespoon sweet pickle relish
  • 1 teaspoon white vinegar
  • 1 teaspoon sugar
  • 1/4 teaspoon salt

Instructions

  1. 1

    In a small mixing bowl, combine the mayonnaise, ketchup, and sweet pickle relish.

  2. 2

    Stir in the white vinegar, sugar, and salt until the mixture is smooth and well combined.

  3. 3

    Taste the sauce and add a pinch more salt if you think it needs it.

  4. 4

    Cover the bowl and place it in the refrigerator for at least thirty minutes to let the flavors blend together before serving.

💡 Tips

This sauce keeps well in an airtight container in the fridge for up to a week. Use it as a dip for crispy french fries or spread it generously on your next homemade cheeseburger.

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