In-N-Out Burger is a popular fast-food chain primarily operating in the Western United States. It was founded in 1948 in Baldwin Park, California, and has since grown to have locations in California, Nevada, Arizona, Oregon, and Utah. In-N-Out is known for its simple menu, which includes hamburgers, cheeseburgers, French fries, milkshakes, and beverages.
They are particularly famous for their “Animal Style” burgers and secret menu, which offers additional customization options for customers. In-N-Out has a loyal following and is often praised for its fresh ingredients and high-quality food.
Why Is It Called In-N-Out?
The name “In-N-Out” alludes to the convenience of customers being able to place their orders from their cars and receive their food quickly. The drive-thru system allows customers to efficiently “drive-in” to place their orders and then “drive out” with their meals, making it a popular choice for people on the go. This aspect of the name further emphasizes the restaurant’s commitment to providing fast and convenient service.
In-N-Out Sauce
In-N-Out sauce, or “spread,” is a signature condiment used in In-N-Out Burger’s menu items. It is a creamy and tangy sauce that adds a unique flavor to their burgers and other sandwiches. The sauce is often described as combining Thousand Island dressing and a special blend of ingredients exclusive to In-N-Out.
Ingredients Of In-N-Out Sauce
These ingredients work together to create the signature flavor of In-N-Out sauce, combining creaminess, tanginess, sweetness, and a touch of pickle goodness for a delicious condiment that pairs well with burgers and other dishes.
- Mayonnaise: Mayonnaise is a thick and creamy condiment made from oil, egg yolks, vinegar, or lemon juice. It provides a smooth and rich base for the In-N-Out sauce, adding a creamy texture and helping to bind the flavors together.
- Ketchup: Ketchup is a tangy and slightly sweet tomato-based condiment. It contributes a vibrant tomato flavor to the In-N-Out sauce and adds a touch of natural sweetness. Ketchup also enhances the overall color of the sauce.
- White Vinegar: White vinegar is a mild and clear vinegar made from fermented grains. It brings the sauce a tangy and acidic taste, providing a pleasant zing that balances the creaminess and sweetness. The vinegar also helps to preserve the sauce.
- Granulated Sugar: Granulated sugar is a common sweetener from sugarcane or sugar beets. It adds a subtle sweetness to the sauce, complementing the tanginess of the other ingredients. The sugar also helps to create a well-rounded flavor profile.
- Sweet Pickle Relish: Sweet pickle relish consists of chopped pickled cucumbers, vinegar, sugar, and various seasonings. It contributes a sweet and tangy element to the In-N-Out sauce, providing a unique flavor and texture. The relish adds a touch of brightness and a hint of pickled goodness to the overall sauce.
Taste and Texture Of In-N-Out Sauce
In-N-Out sauce boasts a rich and creamy texture that coats your taste buds with a luscious and smooth sensation. Its taste is a harmonious blend of tanginess from vinegar and ketchup, balanced by a subtle sweetness and the added zing of sweet pickle relish. Together, these elements create a distinct and irresistible flavor profile that elevates any burger or dish it accompanies.
Tips To Make Perfect In-N-Out Sauce
- Balance the flavors: Adjust the quantities of ketchup, vinegar, sugar, and pickle relish to find the ideal tanginess, sweetness, and pickle flavor that suits your taste preferences.
- Let it meld: Allow the sauce to refrigerate for at least an hour before using. This gives the ingredients time to mingle, enhancing the flavors and ensuring a more cohesive taste.
- Customize the sweetness: Add more sugar or sweet pickle relish if you prefer a sweeter sauce. Conversely, if you prefer a tangier profile, reduce the sugar or increase the vinegar slightly.
- Experiment with spices: Consider adding a pinch of garlic powder, onion powder, or paprika to enhance the depth of flavor. Start with small amounts and adjust to your liking.
- Adjust the consistency: If you prefer a thinner sauce, add a milk or water splash to achieve the desired texture. Conversely, reduce the amount of liquid ingredients slightly for a thicker sauce.
- Double the batch: Prepare a larger quantity of the sauce to keep on hand. It stores well in the refrigerator for several days and can be used as a dip, spread, or dressing for various dishes beyond burgers.
Recipe Variations And Add-Ons
Spicy Kick
Add a dash of hot sauce or cayenne pepper to give the In-N-Out sauce a fiery twist and a spicy kick.
Smoky Flavor
Incorporate a touch of liquid smoke or smoked paprika to infuse the sauce with a delightful smoky flavor.
Herb Infusion
Mix finely chopped fresh herbs like parsley, dill, or chives to introduce a fresh and herby element to the sauce.
Chipotle Twist
Blend in some chipotle peppers in adobo sauce for a smoky and spicy variation of the In-N-Out sauce with a hint of depth and complexity.
Creamy Garlic
Introduce minced garlic or garlic powder to the sauce for a creamy and aromatic garlic-infused version that adds flavor depth.
Vegan Version Of In-N-Out Sauce
To create a vegan version of In-N-Out sauce, substitute vegan mayonnaise instead of regular mayonnaise. Choose a vegan mayo from plant-based ingredients like soy, avocado oil, or aquafaba to ensure it aligns with your dietary preferences. Proceed with the recipe as usual, and you’ll have a delicious vegan In-N-Out sauce that retains the creamy texture and tangy flavors without any animal-derived ingredients.
Serving Suggestions
Classic Burgers
Spread the In-N-Out sauce generously on your favorite burgers for a burst of tangy creaminess.
Veggie Wraps
Use the In-N-Out sauce as a flavorful dressing for veggie wraps, adding a zesty kick to your plant-based creations.
Dipping Sauce
Serve the In-N-Out sauce as a dip for onion rings, chicken tenders, or even fresh vegetable sticks.
Sandwiches and Subs
Elevate your sandwiches and subs by spreading a layer of the In-N-Out sauce, enhancing their taste with its creamy tang.
Tacos and Burritos
Add a dollop of the sauce to your tacos or burritos, delivering a flavor that pairs well with the fillings.
French Fries
Serve the In-N-Out sauce as a delightful dipping sauce for hot and crispy French fries, elevating their flavor with a creamy and tangy kick.
Salad Dressing
Use the In-N-Out sauce as a base for a creamy salad dressing by thinning it out with a little lemon juice or vinegar.
Loaded Baked Potatoes
Top your baked potatoes with a spoonful of In-N-Out sauce, along with other toppings like chives, vegan cheese, or vegan bacon bits.
Stuffed Bell Peppers
Mix the In-N-Out sauce into the filling for stuffed bell peppers to infuse them with a flavorful twist.
Nachos
Take your nacho game to the next level by using In-N-Out sauce as a drizzle or dipping sauce for your tortilla chips and your favorite toppings and vegan cheese.
Is In-N-Out Sauce And Thousand Island Dressing the Same?
While In-N-Out sauce and Thousand Island dressing share similarities, the main difference lies in the flavor profile and ingredients. The In-N-Out sauce tends to have a tangier and more prominent pickle relish taste, while Thousand Island dressing is sweeter and creamier with a milder pickle flavor. The In-N-Out sauce is also typically thicker in consistency compared to the pourable consistency of Thousand Island dressing.
Storage Of In-N-Out Sauce
- Refrigeration: Store the In-N-Out sauce in an airtight container or jar in the refrigerator to maintain its freshness and quality.
- Proper Sealing: Ensure the container is tightly sealed to prevent air exposure, which can lead to flavor degradation.
- Labeling: Clearly label the container with the date of preparation to keep track of its freshness and usage timeline.
- Shelf Life: The sauce can typically be stored in the refrigerator for up to 1 week, but check for any signs of spoilage before using.
- Freezing: If you have a larger batch, you can freeze the sauce in smaller portions for longer storage, up to 2-3 months.
- Thawing: Thaw frozen sauce in the refrigerator overnight before using, and give it a good stir to ensure the ingredients are well combined.

In-N-Out Sauce Recipe
Equipment
- Medium bowl
- Whisk
- Plastic Wrap Or Airtight Container For Storage
Ingredients
- 1/2 cup mayonnaise
- 3 tbsp ketchup
- 1/2 tbsp white vinegar
- 1/2 tbsp granulated sugar
- 2 tbsp sweet pickle relish
Instructions
- Add the mayonnaise, ketchup, white vinegar, granulated sugar, and sweet pickle relish in a medium bowl.
- Whisk the ingredients until they are well combined and the sauce is smooth.
- Cover the bowl with plastic wrap or transfer the sauce to an airtight container.
- Refrigerate the sauce for at least 1 hour to allow the flavors to meld and develop.
- After refrigeration, the In-N-Out sauce is ready to be used!
- Serve the sauce with your favorite burgers, sandwiches or as a dipping sauce for fries.
Video
Notes
- Feel free to adjust the amount of sugar or sweet pickle relish to customize the level of sweetness to your liking.
- Use vegan mayonnaise and ensure that your other ingredients are vegan-friendly to create a delicious vegan version of the In-N-Out sauce.
- The sauce can be stored in the refrigerator for up to one week in a sealed container.
- Allowing the sauce to refrigerate for at least 1 hour before serving helps the flavors meld together for the best taste.
- If you're a fan of the sauce, consider doubling the recipe to have extra on hand for future meals or gatherings.
Nutritional Facts
Serving Size: 1 Tablespoon Of In-N-Out Sauce- Calories: 90
- Total fat: 9g
- Saturated fat: 1g
- Cholesterol: 5mg
- Sodium: 190mg
- Total carbohydrates: 3g
- Sugar: 2g
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