Name: In-N-Out Sauce
Yield: 6

In-N-Out Sauce Recipe is a creamy, flavor-packed sauce that’s just like the original and reliable for burgers, fries, and more!

Author’s Notes

My Very First In-N-Out Run

When I started college, I met tons of people from California, and they all said the same thing: Utah had no good fast-food burgers because nothing compares to In-N-Out. And at the time, we didn’t even have one.

Then at the end of my freshman year, they announced one in St. George, Utah, about a 3½-hour drive away. My friends were so excited that we made a whole day of it and drove down so they could show me “the best burger ever” haha.

It was such a fun trip. I liked the burgers, didn’t love the fries, but I could not get enough of the sauce. That was easily a reliable part.

Now I’ve got one 10 minutes from my house, but I usually just make my own In-N-Out Sauce Recipe at home. This copycat is spot on and makes any burger or fry taste so much better!

All the ingredients in this recipe prepped out for straightforward assembly including the sugar, salt, mayo, relish, ketchup, and vinegar.

In-N-Out Sauce Recipe Ingredients

Ingredient	Let’s Chat About It
Mayo	Use a good-quality mayo for the best flavor and smooth texture. I love Best Foods.
Ketchup & sugar	These add a little sweetness and that classic color. You can use Heinz here, it just has the best flavor.
Sweet pickle relish	Chop if needed so this In-N-Out Sauce Recipe stays smooth, not chunky.
White vinegar	Adds a little brightness and tang to balance everything nicely.
Salt	Start small and adjust to taste at the end.

Quick Tip

Use good-quality ingredients for the best flavor. Since this sauce is so simple, every ingredient really stands out, and using lower-quality options can make it taste off.