Condiments

In-N-Out Sauce (Copycat)

By Samira Kazan

published September 17, 2024

Learn how to make the best In-N-Out sauce at home. This copycat recipe is quick and easy and is great for adding a creamy, tangy flavor to burgers, fries, veggies, and more!

Homemade In-N-Out sauce in a small white bowl with a spoon dipped in it. - 1

Ever wish you could take home a bottle of your favorite restaurant’s secret sauce? Me too! The good news is, you can make it yourself. From Raising Cane’s sauce and Chick-fil-A sauce to Big Mac sauce and this In-N-Out sauce , it’s surprisingly easy to recreate these iconic flavors at home.

This In-N-Out Burger spread is a super quick and easy recipe (under 5 minutes), using only five pantry-staple ingredients. Plus, you can enjoy the sauce in so many ways—as a spread for grilled burgers , a dipping sauce for fries, a sauce for crispy fried chicken breast , and more! The creamy, tangy, and slightly sweet flavor will enhance your meal. I am sure this sauce will become a favorite topping in your household!

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Ingredients
How to make In-N-Out sauce
How to serve In-N-Out sauce
How to store
More sauce recipes
In-N-Out Sauce (Copycat) Recipe

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Ingredients

Mayonnaise: It’s the base of the In-N-Out sauce and brings that creamy texture. Use your favorite brand or even homemade mayonnaise .
Ketchup : Adds tanginess and sweetness. The tomato flavor complements the other ingredients.
Sweet pickle relish: Brings a bit of crunch and tang.
White sugar: Balances the flavors.
White vinegar: Provides that tangy kick.

See the printable recipe card below for full information on ingredients and quantities.

How to make In-N-Out sauce

Measure out the ingredients. Also, if you think you will need a big batch, you can easily double the recipe.

Place all the ingredients in a bowl (or directly in a jar or glass container) and stir until well incorporated. Now, you can taste test and adjust to your liking—you can add a pinch of salt, pepper, paprika, or yellow mustard if wanted.

Steps for making in-n-out sauce at home. - 3

Then, transfer the mixture to a jar or glass container. Finally, let it rest for the best flavor—place it in the fridge for 30-60 minutes before serving to allow the flavors to meld.

How to serve In-N-Out sauce

This In-N-Out burger spread is such a versatile topping. Here are some of my favorite ways to use it:

As a burger sauce: Spread a generous amount to the burger buns before adding the grilled burger patties and your toppings. And don’t forget the grilled onions .
Dip for potatoes: Use this creamy dip for these easy air fryer french fries or baked french fries .
Dip for veggies: You can also dip fresh veggies cut into sticks—this makes such a yummy appetizer.
For chicken: Serve with crispy fried chicken breast or air fryer chicken tenders .
For meat: Drizzle or brush the In-N-Out sauce over grilled meats for extra flavor.
As a spread: Whenever you want a quick lunch or a snack, use the sauce on sandwiches, lettuce wraps, or hot dogs.

Homemade In-N-Out sauce in a small bowl next to an assembled burger. - 4

How to store

In the fridge: You can store the sauce in an airtight container in the refrigerator for up to 2 weeks.
Make ahead: The In-N-Out sauce is even better after the flavors have had time to meld. So you can prepare it a day or two before you need it and you can keep it in the fridge.

More sauce recipes

Big Mac Sauce
Fry Sauce Recipe
Copycat Chick-fil-A Sauce
Raising Cane’s Sauce Recipe (Copycat)
Homemade Chipotle Sauce
Buffalo Wing Sauce Recipe

IngredientsUS CustomaryMetric1x2x3x

▢ 1 cup mayonnaise
▢ 1/3 cup ketchup
▢ 1/4 cup sweet pickle relish
▢ 1 Tbsp white sugar
▢ 1 Tbsp white vinegar

Instructions

Combine all the ingredients in a bowl (or directly in a jar or glass container). Stir everything together until well mixed. Taste and adjust the seasoning as needed.
Transfer the In-N-Out sauce to a jar or glass container and refrigerate for 30-60 minutes before serving.

Video

Notes

Nutrition

Nutrition information is automatically calculated, so should only be used as an approximation.