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The In-N-Out special sauce is totally worth the hype! It’s the kind of sauce that you want to slather on anything and everything. Well, I have cracked the code! I will teach you how to make the best copycat In N Out sauce!

This sauce is the real deal, apparently, we were just a few steps away from this little taste of goodness! This secret menu item is no longer a secret and today you will learn exactly how to make it from the comfort of your own kitchen!

Take Your Burgers to The Next Level!

in-n-out sauce in a wooden bowl
Creamy and delicious!

What to Serve With This In-N-Out Sauce?

This famous in-n-out spread can be slathered on whatever your heart, and taste buds, desire! Oh, btw I’m warning you when you make it the first time, you can’t ever stop!

This sauce is one of the best things that you could dip your fries and onion rings in. For a healthier option, you can go for air fryer French fries. It also works perfectly with animal-style fries, another is basically French fries with caramelized onions and melted cheese. You could use cheddar cheese or a slice of American cheese.

This in-n-out sauce is the best burger sauce, it literally complements them perfectly! Just pick any burger of your choice, slather a generous amount inside of your hamburger bun, and eat heartily!

It could also work with roasted or fresh vegetables like Easy Grilled Shishito Peppers and grilled chicken. This is one of my favorite recipes Grilled Chicken Tikka (Tandoori Chicken) try it and I’m sure you will love it!

This homemade sauce pairs well with hot dogs! If you’re up for a small challenge try this Hot Dogs Wrapped in Puff Pastry recipe! For more sauce options, you could also make this Homemade Hot Dog Sauce Recipe.

Master The Iconic In-N-Out taste!

Dipping a piece of crinkle fries in a ramekin bowl containing a homemade in n out copycat sauce
Homemade perfection.

Customize Your Own Sauce

Want to make In-N-Out signature sauce your own? Make a few tweaks to add your own touch. When it comes to this copycat recipe, there are a few things you could add to elevate it and make it yours!

If you’re a fan of spicy food, consider adding some chopped jalapenos for that fiery kick. And to bring the heat to life, add a small squeeze of sriracha.

If you’re looking to enhance the overall flavor profile, don’t hesitate to incorporate a medley of seasonings. A sprinkle of salt and pepper will add a savory depth that complements the other ingredients perfectly.

For those who enjoy a satisfying crunch, finely chopped pickles can be a fantastic addition. Their unique texture will give a delightful contrast to the creamy base of the sauce.

To further elevate this simple recipe, don’t forget the yellow mustard.

Tips For A Perfect Copycat In N Out Sauce

  • Allow the flavors to meld together by refrigerating the sauce for at least an hour. This resting time will enhance the taste.
  • Store in an airtight container in the fridge for up to two weeks.
  • If you prefer a creamier sauce, add a teaspoon of sour cream or Greek yogurt.

An Unforgettable Meal

a delicious meal consisting of a burger, fries, pickles, and two types of copycat sauce
This copycat in-n-out sauce will pair perfectly with your burger and fries.

Frequently Asked Questions  (FAQ)

What’s the difference between Thousand Island dressing and in-n-out sauce?

Thousand Island is a tangy sauce just like in n out’s, but these two are actually different. In N Out sauce has a thinner consistency than Thousand Island which is usually on the spicy side too.

Can I make the sauce vegan or dairy-free?

Yes, you can make a vegan or dairy-free version of the In-N-Out sauce by using vegan mayonnaise or a plant-based alternative. Ensure that all the other ingredients you use are also vegan or dairy-free.

Can I freeze the sauce for longer storage?

It is not recommended to freeze the In-N-Out sauce, as mayonnaise-based sauces tend to separate and lose their texture when thawed. It is best to make smaller batches and store them in the refrigerator for shorter-term use.

The Ingredients You Will Need

This in-n-out secret sauce only requires this short list of simple ingredients

Mayonnaise: It is the main ingredient of this recipe.

Sweet pickle relish: if you prefer sweet relish or dill pickles you can use them, but keep in mind that they might taste slightly different.

Ketchup: You don’t need much, but it’s all up to you and your liking.

White vinegar: Feel free to replace it with water if you don’t like the taste.

Sugar: A pinch of sugar is ideal, but you can adjust it depending on your personal preference.

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In N Out Copycat Sauce

By: Lama
The secret sauce that elevates any meal is no longer a secret! This In N Out copycat sauce tastes exactly like the one you would get from the restaurant, if not better. Try it out and share your thoughts.
Prep Time: 5 minutes
Cook Time: 5 minutes
Chilling Time: 30 minutes
Total Time: 40 minutes
Servings: 6 servings


  • ½ cup mayonnaise
  • 3 tablespoons ketchup
  • 2 tablespoons sweet pickle relish
  • teaspoons  sugar
  • 1 teaspoon white vinegar


  • In a mixing bowl, combine mayonnaise, ketchup, sweet pickle relish, white vinegar, and sugar. Mix until well combined.
  • Let it chill in the fridge for at least 30 minutes, then serve and enjoy!


  • Allow the flavors to meld together by refrigerating the sauce for at least an hour. This resting time will enhance the taste.
  • Store in an airtight container in the fridge for up to two weeks.
  • If you prefer a creamier sauce, add a teaspoon of sour cream or Greek yogurt.


Calories: 146kcal | Carbohydrates: 5g | Protein: 0.3g | Fat: 14g | Saturated Fat: 2g | Polyunsaturated Fat: 8g | Monounsaturated Fat: 3g | Trans Fat: 0.03g | Cholesterol: 8mg | Sodium: 227mg | Potassium: 26mg | Fiber: 0.1g | Sugar: 4g | Vitamin A: 112IU | Vitamin C: 0.4mg | Calcium: 3mg | Iron: 0.1mg
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About Lama

I'm Lama, welcome to my blog where you will find simple and diverse recipes your entire family will enjoy. I am honored to connect with you through the recipes I prepare!

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