In-N-Out Spread Sauce – Tangy. Creamy. Iconic.
The In-N-Out spread is the chain’s signature pink orange sauce that gets layered onto every burger, used as the dressing for Animal Style fries, and packaged into the small condiment cups that customers can request at the counter.
🥄 THE INGREDIENTS USED IN IN-N-OUT SPREAD SAUCE
Mayonnaise
Mayonnaise is the base of the entire sauce and accounts for roughly half of the final volume. The mayo provides the creamy texture that holds the spread together. Without mayonnaise, the sauce would not have the body or the smoothness that makes it work as a burger spread.
Ketchup
Ketchup adds the tomato sweetness, the red color that creates the pink hue when blended with the mayo, and a light tangy note that balances the richness of the base.
Sweet Pickle Relish
This is the ingredient that separates the In-N-Out spread from a basic thousand island dressing. Without it, the spread tastes flat.
Distilled White Vinegar
A small amount of vinegar sharpens the entire flavor profile and cuts through the richness of the mayonnaise.
Sugar
Just a teaspoon or so of sugar balances the tang of the vinegar and the pickle relish.
Salt
A small pinch of salt brings every other flavor forward.
Black Pepper
A light dusting of black pepper adds a quiet warmth at the back of the palate without making the sauce taste spicy.
Check out complete In N Out Menu here.
🍳 HOW TO MAKE IN-N-OUT SPREAD SAUCE AT HOME
This is the homemade version that comes closest to the original. The recipe takes about five minutes of active work and requires nothing more than pantry staples. The trick is in the chilling time, which lets the flavors fully blend together.
Ingredients
The recipe below makes approximately three quarters of a cup of spread, which is enough for four to six burgers or a generous bowl of dipping sauce for fries.
- Half a cup of mayonnaise (use a good quality brand for the best result)
- Three tablespoons of ketchup
- Two tablespoons of sweet pickle relish (not dill relish, this matters)
- One and a half tablespoons of distilled white vinegar
- One tablespoon of granulated sugar
- Half a teaspoon of fine salt
- A quarter teaspoon of freshly ground black pepper
Instructions
Step 1. Add all seven ingredients to a clean medium sized mixing bowl. Make sure the relish is fully drained of excess liquid before adding it, or the spread will turn out runny.
Step 2. Whisk the ingredients together using a regular kitchen whisk or a fork. This usually takes about thirty seconds of steady whisking.
Step 3. Taste the sauce at this stage and adjust if needed. If it tastes too tangy, add a small pinch more sugar. If it tastes too sweet, add a few drops more vinegar. If it tastes flat, add a small extra pinch of salt.
Step 4. Cover the bowl tightly with plastic wrap or transfer the spread into a clean airtight container with a tight fitting lid. Place it in the refrigerator and chill for at least thirty minutes before using. This step is essential. The chilling time lets the vinegar mellow, the sugar dissolve fully, and the pickle relish soften into the base.
Step 5. Before serving, give the spread one final stir to redistribute any settled ingredients. The sauce is now ready to use on burgers, fries, sandwiches, salads, or anything else that needs a creamy tangy upgrade.
Storage Tips
The homemade spread will keep in the refrigerator for up to two weeks in a tightly sealed container. After about ten days, you may notice the sauce starts to separate slightly. A quick stir brings it back together. Do not freeze the spread because the mayonnaise will break down and the texture will not recover.
🌶️ HOW TO USE IN-N-OUT SPREAD SAUCE BEYOND BURGERS
As a Burger Spread. The original use case. Spread a thin layer onto a soft toasted bun before adding the patty, cheese, lettuce, tomato, and onion.
As a French Fry Dip. This is the second most popular use. Pour a small amount into a side bowl and dip hot, salted French Fries directly into the spread.
As a Sandwich Spread. The spread works beautifully on cold deli sandwiches with turkey, roast beef, or ham. It also works on warm sandwiches like grilled cheese, club sandwiches, and reuben style builds where you would normally use Thousand Island dressing.
As a Salad Dressing. The spread can be thinned with a tablespoon or two of buttermilk or whole milk and used as a creamy salad dressing. It pairs especially well with iceberg lettuce wedges, romaine salads, and chopped salads with bacon and tomato.
As a Wrap Sauce. Spread a thin layer onto the inside of a flour tortilla before adding fillings for a chicken wrap, turkey wrap, or grilled vegetable wrap.
As a Dip for Onion Rings. If you make onion rings at home, the spread is one of the best dipping sauces you can pair them with.
As a Dip for Chicken Tenders. Whether you are eating store bought tenders or homemade ones, the spread works as a more interesting alternative to standard honey mustard or barbecue sauce.
Conclusion
The In-N-Out spread is one of the most beloved fast food sauces in American history, and the homemade version you can make in five minutes at home gets you remarkably close to the original. The base recipe of mayonnaise, ketchup, sweet pickle relish, vinegar, sugar, salt, and pepper has been studied, tested, and refined by fans for decades, and the version on this page reflects the closest approximation that most home cooks can achieve without working in the chain’s kitchen.