Fry Sauce (made 4 ways!)

5 from 55 votes

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If you don’t know what Fry Sauce is, you are missing out! Just mix a few simple ingredients and you will never dip your fries in anything else again!

Four kinds of fry sauce on a platter filled with potato fries.
Featured with this recipe
  1. What is Fry Sauce?
  2. Restaurant Variations
  3. Red Robin Campfire Sauce
  4. In-n-Out Fry Sauce
  5. Outback Steakhouse Blooming Onion Sauce
  6. More Tasty Fry Sauce Ideas
  7. What Tastes Good with Fry Sauce?
  8. How to Make Fry Sauce
  9. Fry Sauce – made 4 ways Recipe

If you walk into a restaurant in most states and ask for fry sauce, you are likely to get either a strange look or a handful of ketchup packets. Trust me. I know from experience. And no, it’s not Thousand Island Dressing either. This fry sauce is so yummy and really easy to make, I can’t explain how just a few simple ingredients can take the potato world by storm, but they have and they do. I grew up on this stuff. To be honest, it’s probably the first “recipe” I ever made. Try it. You will love it. You will never go back to eating fries with plain old ketchup again.

This is just one of many delicious dips and sauces we love! Try dipping breadsticks in our homemade alfredo sauce, drench chicken with our yummy homemade barbeque sauce, or serve fish and chips with this easy-to-make tartar sauce.

What is Fry Sauce?

For the most part, this tasty condiment can be found in Utah, Idaho, and parts of Oregon. At its most basic level, a fry sauce recipe is just a combination of ketchup and mayonnaise. Put a couple of spoonsful of each in a bowl and whisk until you get a glorious pink color. However, as you’ll see when you read our recipe below, there are several ways to create this iconic dipping sauce. Once it’s made, the options for what to dip into it are endless. Make sure to store it in the fridge, and the batch will last up to a week.

Four bowls with four different varieties of fry sauce.

Restaurant Variations

Now as you will see in the recipe below, there are all kinds of variations you can make to the original fry sauce. We have included three different variations including Red Robin campfire sauce, In-In-Out fry sauce, or blooming onion sauce. These all have main ingredients with a mixture of ketchup, barbecue sauce, mayo, and mustard. The combinations are endless!

Red Robin Campfire Sauce

BBQ sauce replaces ketchup in Red Robin’s Campfire Sauce. It tastes great with onion rings, fries, and chicken strips or nuggets. This is a sweet and savory sauce that is delicious with a variety of recipes to dip it into. The perfect combination for thick fries!

Red Robin Campfire Sauce in a white bowl.

In-n-Out Fry Sauce

This version has a pickle relish in it. The relish gives it more of a dill flavor and the little chunks of pickles give it some texture and crunch. A great way to add a sweet and tangy taste in every bite. Mix together in a small bowl and get ready for loads of flavor!

Copycat In-n-out fry sauce in a bowl.

Outback Steakhouse Blooming Onion Sauce

A little horseradish and brown mustard give this fry sauce some kick. It gives onion rings and French fries a richer, more mature, taste. A sweet, savory, and spicy dip is the perfect combination for dipping in sweet and salty recipes. Enjoy this blooming onion sauce with your friends and family!

Outback Steakhouse Bloomin' Onion Sauce in a white dish.

More Tasty Fry Sauce Ideas

You can mix and match or substitute the flavors above or come up with your own. They are all the same basic idea and they are ALL so tasty in their own way.

  • Add a little pickle juice to the mayo and ketchup for an extra tangy flavor.
  • For a little kick, toss in a dash or two of hot sauce, cayenne pepper and paprika.
  • Add any spices you like to a basic ketchup and mayo mixture: garlic powder, salt, black pepper, onion powder, or grill seasoning.
  • A teaspoon of Worcestershire sauce will give the fry sauce a deep flavor that tastes delicious on a burger.
  • Stir in a splash of apple cider vinegar to the ketchup and mayo.
Two kinds of fry sauce on a tray of fries.

What Tastes Good with Fry Sauce?

There are some people who will tell you that pretty much anything tastes better with fry sauce. But there are several things for which this condiment is best. Our delicious Baked Potato Wedges are one of the first things that come to mind. You could try one of these Fry Sauce versions on our Loaded Cheesy Potato Skins. Or, the next time you pick up takeout french fries, whip up some of this amazing dipping sauce and see how much better even the best restaurant french fries can taste.

If you’re looking to dress up the average hamburger, fry sauce is an excellent way. Give it a try on our White Castle Sliders Copycat Recipe and let us know how it tastes!

How to Make Fry Sauce

4 varieties of fry sauce on a white tray surrounded by French fries

Fry Sauce – made 4 ways

5 from 55 votes
If you don’t know what Fry Sauce is, you are missing out! Just mix a few simple ingredients and you will never dip your fries in anything else again!
Prep Time 5 minutes
Cook Time 0 minutes
Total Time 5 minutes
Course Sauce
Cuisine American
Servings 8



  • 1/3 cup ketchup
  • 2/3 cup mayonnaise


    Red Robin Campfire Sauce

    • 1 cup Fry Sauce (see above)
    • 1/3 cup BBQ Sauce

    In-N-Out Fry Sauce

    • 1 cup Fry Sauce (see above)
    • 1 tablespoon mustard
    • 1/4 cup dill relish

    Outback Steakhouse Bloomin' Onion Sauce

    • 1 cup Fry Sauce (see above)
    • 1 tablespoon brown mustard
    • 1 tablespoon creamy horseradish (or to taste)


    • Mix all ingredients until smooth.
      Mixing together ketchup and mayo fro fry sauce
    • Refrigerate until ready to serve.
      Fry Sauce on French Fries
    • Eat with fries or chicken nuggets.
      4 varieties of fry sauce on a white tray surrounded by French fries


    Nutrition listed is for basic fry sauce only.

    Nutrition Information

    Calories: 138kcalCarbohydrates: 3gProtein: 1gFat: 14gSaturated Fat: 2gCholesterol: 8mgSodium: 209mgPotassium: 32mgSugar: 3gVitamin A: 63IUVitamin C: 1mgCalcium: 3mgIron: 1mg

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    About the author

    Erica Walker

    Erica lives in Boise, Idaho with her husband, Jared, an attorney, and her three beautiful girls. Beyond the world of recipes, she loves adventuring with everything from kayaking, to cruising, to snowboarding and taking the family along for the thrill ride.

    More about Erica Walker

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    1. 5 stars
      Thank you so much! I always tried, but could never figure it out. I would love it if you could figure out what Jumbo Burger (in Farr West, Utah) fry sauce is made of!? I have been trying for about a decade to figure it out. I’ve tried seasoning salt added to ketchup and mayo, but that’s as close as I could get, but it’s still not right. Please help!

    2. 5 stars
      I used the Red Robin version of the Fry Sauce and it was wonderful. Thank-you for this recipe.
      I also used the fry sauce when I made grilled cheese sandwiches. I spread it the inside of each slice of bread then add the cheese and fry it up with butter or margarine.

    3. Have used these sauces for years…Am still trying to match Texas Roadhouse sauce served with the catfish…

    4. My ex husband said the basic ingredients for the fry sauce is french salad dressing when you don’t have any, but i didn’t like it on lettuce

      1. Fry sauce is thicker, and to me tastes different. It’s not as tangy as French salad dressing – but, maybe that’s just me. In either case, the fry sauce is delicious on French fries!

    5. 5 stars
      I have been making the basic fry sauce (though I didn’t have a name for it) for at least fifty years and spooning it over lettuce wedges. I’m a Texan, born and raised in Houston.

    6. Fry Sauce is nothing more than Mayo, Ketchup, & whatever else you choose to add into it – depending upon your palate, and on what you’ll be eating it with. IMO, add in whatever you desire. OMG, it’s NOT a recipe which is chiseled in stone, so go with your personal taste buds. It’s REALLY not a big deal for most of us.

    7. 5 stars
      I can not wait to try each and every one of these fry sauces! I can’t decide which one to try first as they all look and sound incredible!!

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