This In and Out Sauce Recipe is perfect for burgers, chicken, fries, and more. It’s an easy condiment that will instantly elevate all of your dinner favorites.
If you like a good copy cat recipe, than try my homemade shamrock shake or try my disneyland churros.
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Why this In N Out Sauce Recipe is a Keeper
This recipe is a perfect copycat of the famous sauce served with In-N-Out burgers. It’s quick and easy to make, and uses simple ingredients, like mayo and ketchup. This delicious sauce is the perfect topping for burgers and sandwiches, but can also be used as a salad dressing or a topping for animal style fries.
The sweet and tangy flavor of this iconic In-N-Out burger sauce will easily upgrade a classic burger, making it our favorite fast food sauce. Here are a few reasons why you’ll want to try this delicious copycat secret sauce recipe:
- Easy Ingredients for the In and Out Sauce: All of the ingredients in this homemade fry sauce can be found in your kitchen or local grocery store.
- Only 5 Ingredients: This French fry sauce uses only 5 ingredients.
- Versatile: Make a copycat In-N-Out sauce for everything from hamburgers to onion rings.
Can I Make this Recipe Vegetarian?
This cheeseburger sauce recipe does not contain any meat products, but if you want to make it vegan, you can try a mayo substitute, such as silken tofu, tahini, or plant-based Greek yogurt.
Ingredient Notes for Copycat In-N-Out Dressing
- Relish: Sweet pickle relish adds a tang to this copycat sauce recipe.
See the recipe card below for a complete list of the ingredients with measurements.
In-N-Out Burger Sauce Prep Ahead Suggestions
- Make Ahead: This In-N-Out burger spread will last for up to a week. Make it at home, then store it in the refrigerator to let the flavors meld.
Recipe Tip for the In and Out Sauce Recipe
Overmixing this fast-food burger spread recipe can make the sauce too runny. Mix just until combined.
How to Make Copycat In-N-Out Sauce
You can make In-N-Out sauce at home in just a few easy steps. It makes a great dipping sauce for French fries or copycat In-N-Out burgers. Follow the steps below to learn how to make In-N-Out spread.
Here’s how to make perfect copycat In-N-Out burger sauce at home. Refer to the full, printable recipe card below for detailed instructions.
1. Combine the Ingredients Together
Combine the mayonnaise, ketchup, relish, sugar, and white vinegar in a small bowl or medium bowl. Whisk until combined.
2. Refrigerate the Sauce
Place the sauce in the refrigerator for at least 30 minutes before serving. Use In-N-Out sauce on air fryer French fries, or spread on hamburger buns for an animal style burger.
How to Store and Use Leftover Secret Sauce
- Storing: Store this special sauce in an airtight container in the refrigerator.
- Using Leftovers: This In-N-Out animal style sauce should be good for up to a week.
Variations and Substitutions for In-N-Out Burger Sauce
- Grilled Cheese: Spread sauce on the bread for a gourmet twist on a classic.
- Chicken Tenders: Dip your chicken tenders in the sauce for a zesty flavor.
- Veggies: Use it as a dipping sauce for roasted vegetables like Brussels sprouts or carrots.
- Apple Cider Vinegar: Add some Worcestershire sauce, salt and pepper, or apple cider vinegar to round out the flavors.
- Sandwiches: Spread it on your favorite sandwich for extra flavor.
- Eggs: Add a dollop to your breakfast eggs for a savory touch.
- Potatoes: Drizzle it over baked potatoes or mashed potatoes.
Dipping Sauce Frequently Asked Questions
This recipe is similar to Thousand Island dressing, but has a smoother texture.
No, but if you want, you can make it spicier. Try adding a little red pepper flake or other spice.
Yes; you can use a lighter version of mayonnaise or ketchup if you want.
Expert Tips for Making this Copycat Recipe
- Chili Powder: Add heat with chili powder, red pepper flakes, or cayenne pepper.
- Mustard: Mix some yellow mustard into this tangy fast food sauce.
- Protein: Add protein, such as bacon bits.
- Honey: Make the sauce sweeter with a touch of honey.
In and Out Sauce (Copycat)
Video
Equipment
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Ingredients
- ½ cup Mayonnaise
- 3 tablespoons Ketchup
- 2 tablespoons Sweet Pickle Relish
- 1 ½ teaspoons Sugar
- 1 ½ teaspoons White Vinegar
Instructions
- Combine all ingredients together in a small bowl and whisk until combined.
- Refrigerate for at least 30 minutes before serving.
Christina’s Notes
- Chili Powder: Add heat with chili powder, red pepper flakes, or cayenne pepper.
- Protein: Add protein, such as bacon bits.
- Honey: Make the sauce sweeter with a touch of honey.
- Scale the recipe: Simply adjust the serving size in the recipe card and the ingredients will update automatically.
- Make your own All Purpose Seasoning: When a recipe calls for All Purpose Seasoning, you can use my homemade All Purpose Seasoning recipe or substitute salt and pepper to taste.
- Meat doneness: I always use a meat thermometer to test for doneness when cooking meat.
- Use unsalted butter: I use unsalted butter so I can control the salt level in the recipe.
- Preheat the oven: Unless otherwise noted, always preheat your oven before baking.
For more helpful information about this recipe, such as variations, substitutions and other pro-tips, check out the blog post.
No In N Out where I live. So glad I tried this recipe because now I can at least the delicious sauce!
Thank you so much for sharing this amazing in n out sauce recipe! Will surely have this again! It’s really easy to make and it tasted so delicious! Highly recommended!
Who doesn’t love in-and-out’s sauce? Thanks for the terrific dupe recipe.
My husband loved this sauce and he is always the pickiest. Perfect for fries.
Thank you so much for sharing this amazing in-n-out sauce recipe! Will surely have this again! It’s really easy to make and it tasted so delicious! Highly recommended!