This copycat In-N-Out Sauce recipe is easy to make with just 6-simple ingredients. It’s a sweet, briny, and tangy sauce that’s perfect for burgers, finger foods, and homemade Animal Fries.
Table of Contents
If you’ve had the privilege of enjoying a meal at In-N-Out on the west coast of the USA, then you already know about their secret signature sauce. They serve it with practically everything! You’ll find burgers, animal-style fries (french fries topped with sauce, cheese, and onions), and more dressed in this delicious orange sauce.
Even if you don’t have an In-N-Out Burger location near you, you can still enjoy their famous sauce at home with this In-N-Out Sauce recipe. It’s easy to make with only 6 ingredients and lasts for up to 2 weeks in the fridge!
The sweet and tangy flavors complement all of your favorite fun foods, from air fryer french fries to chicken tenders to hamburgers.
Ingredient notes
- Mayonnaise – Real, full-fat mayonnaise is best for the real-deal flavor. You can use light mayo, but the sauce won’t be as thick and velvety.
- Ketchup – For a subtle sweetness and the signature orange color.
- Sweet pickle relish – This will give you the most realistic flavor. If you don’t have relish at home, chop up sweet pickles instead.
- White vinegar – For that signature tang.
- Sugar
- Salt and pepper
How to make In-n-Out Spread
Stir the mayonnaise, ketchup, relish, sugar, and vinegar together in a bowl. Season to taste with salt and pepper, then enjoy it with all of your favorite fried foods!
Tips and tricks
- Let the sauce chill in the fridge for at least 30 minutes before serving. This will give all of the flavors time to mingle and get to know each other.
- To make vegan In-N-Out sauce, substitute mayonnaise for your favorite plant-based mayonnaise.
Serving suggestions
This tangy burger sauce is perfect for dipping, spreading, drizzling, and more. Here are the best ways to indulge:
- Spread on a juicy cheeseburger or air fryer burgers.
- Drizzled over french fries with melted American cheese and caramelized onions (AKA homemade Animal Fries).
- As a dip for crispy chicken tenders, tater tots, onion rings, air fryer fries, green bean fries, zucchini fries, and fish and chips.
- Brushed over grilled chicken or pork.
- Spread on top of meatloaf instead of barbecue sauce or ketchup.
- Drizzled over baked potatoes and roasted sweet potatoes.
How to make ahead and store
- This DIY version of In-N-Out’s signature sauce lasts for up to 2 weeks in the fridge. Make sure to keep it in a tightly sealed container to help it stay fresh.
- You can also freeze it for 2 to 3 months. Some separation may occur, which is why refrigerating the batch is best.
- More → 25+ BEST Sauces for French Fries
More copycat recipes
Did you make this copycat in and out sauce recipe?
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Full Recipe
Copycat In-N-Out Sauce
Ingredients
- 1/3 cup mayonnaise
- 3 Tablespoons ketchup
- 2 Tablespoons sweet pickle relish
- 1 teaspoons sugar
- 1 teaspoons white vinegar
- Salt and pepper (to taste)
Instructions
- Combine all ingredients in a small bowl and stir to combine.
Notes
-
Let the sauce chill in the fridge for at least 30 minutes before serving. This will give all of the flavors time to mingle and get to know each other.
-
To make vegan In-N-Out sauce, substitute mayonnaise for your favorite plant-based mayonnaise.
-
This DIY version of In-N-Out’s signature sauce lasts for up to 2 weeks in the fridge. Make sure to keep it in a tightly sealed container to help it stay fresh.
-
You can also freeze it for 2 to 3 months. Some separation may occur, which is why refrigerating the batch is best.
Nutrition
This post was originally published in 2022. It was updated in 2023 to add new content. The fry sauce recipe remains the same. Enjoy!
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