Copycat In-N-Out Burger Sauce

This Copycat In-N-Out Burger Sauce is one of my favorite sauces to make. Not only great on burgers I like to use it on Hot Dogs as well!

In-N-Out arguably has the best burgers of any fast food restaurant chain out there today. And now you can replicate the flavor of their burgers with this Copycat In-N-Out Burger Sauce recipe!

If you've never had the privilege of eating at In-N-Out you don't know what you are missing. When my family from the East Coast visit me on the West Coast, the first thing they ask is if I can bring them to In-N-Out.

Yes their burgers are that good! While this recipe is only for their famous sauce, it should give you a pretty good idea of just how great their burgers are.

🍔 What's In-N-Out Burger

For those of you that have never heard of In-N-Out Burger, it's a California-based family-owned Burger restaurant chain founded in 1948. It has the honor of being California's first drive-thru hamburger stand. I think recently they've even expanded to Arizona.

The In-N-Out Cheeseburger is made of a Beef Patty, Onion, Lettuce, Tomato, Cheese Slice and this sauce on a Toasted Bun. Now you can make your own at home with this wonderful recipe.

One of the benefits of making this awesome burger sauce at home is you won't have to wait in line! If you've been to In-N-Out Burger before, you know exactly what I mean.

This sauce is so good I also like to put it on my hot dogs. For more great recipes like this one, make sure you check out my collection of Condiments, Sauces & Rubs Recipes. My Copycat McDonald's Big Mac Sauce is another great spread for your burgers! My Boom Boom Dipping Sauce and my Chick-fil-A Honey Mustard Sauce are a couple of my favorite dipping sauces.

⭐ Copycat Rating

Since the goal of a Copycat Recipe is for it to taste exactly like the original, it's only natural to rate this recipe against the original. This Copycat recipe rates a solid 8 out of 10 in my opinion.

If you enjoy making recipes from your favorite restaurants, I recommend you take a look and try some of my other Copycat Recipes. You might be surprised at how easy it is to replicate your favorite restaurant recipe in the comfort of your own kitchen.

Another option would be to make my Delicious Burger Sauce. Super easy to make and tastes delicious!

For more great recipes with Sweet Relish, I suggest you check these recipes out:

📋 What Ingredients do I need

You will need the following ingredients to make this Copycat Burger Sauce recipe from In-N-Out (see recipe card for quantities): Ketchup, Mayonnaise, White Vinegar, Sweet Relish, White Sugar and Yellow Onion.

🥣 How do I make In-N-Out Burger Sauce

In a mixing bowl, stir all ingredients together until well combined.
Let the sauce sit for at least 1 hour in the refrigerator. This will allow all the flavors to meld. You can use it immediately, but the longer you let it sit in the refrigerator, the more flavorful it will be.