Mom's Best Recipes
Recipe

Classic Homemade Fry Sauce

Utah-inspired fry sauce with mayo, ketchup, and a few easy flavor boosters. Creamy, tangy, and dangerously dippable for fries, onion rings, and burgers.

Author By Matt Campbell
4.9
A small ceramic bowl filled with creamy pink fry sauce on a wooden kitchen counter, with a basket of golden French fries slightly out of focus in the background, natural window light, photorealistic food photography
Jump to Recipe

Fry sauce is the kind of condiment that makes you wonder why we ever accepted plain ketchup as the default. It is creamy, tangy, a little sweet, and built for dunking crispy edges into something that actually keeps up.

If you have ever eaten fries in Utah, you already know the vibe: mayo and ketchup, yes, plus a couple small add-ins that make it taste like a burger-joint staple instead of a quick stir in a ramekin.

Below is my go-to Utah-inspired classic, plus a few variations when you want it more pickle-y, smoky, or garlicky. Make it once, then put it on everything that deserves a dip.

A hand dipping a hot, crispy French fry into a bowl of pink fry sauce on a casual dinner table, shallow depth of field, photorealistic food photography

Why It Works

  • Balanced flavor fast: Mayo brings richness, ketchup brings sweetness and tomato tang, and a little vinegar and spice makes the whole thing pop.
  • Totally customizable: Make it sharper, sweeter, smokier, or more garlicky with tiny tweaks.
  • Better after a rest: A 10 minute chill lets the flavors settle so it tastes like it came from your favorite counter-service spot.
  • Works beyond fries: Burgers, onion rings, chicken tenders, roasted potatoes, even as a sandwich spread.

Pairs Well With

Storage Tips

Refrigerate: Store fry sauce in an airtight container in the fridge for up to 1 week for best quality. If it is made with store-bought mayo and kept consistently cold, it can last a bit longer, but a week is the sweet spot.

Food safety note: Because it is mayo-based, do not leave it out at room temperature for more than 2 hours (or 1 hour if it is hot out).

Stir before serving: It can loosen slightly as it sits. A quick stir brings it right back.

Freezing: I do not recommend freezing. Mayo-based sauces tend to separate and get grainy after thawing.

Common Questions

What is Utah fry sauce made of?

Classic Utah-style fry sauce starts with mayonnaise and ketchup. From there, a lot of Utah-inspired versions (including mine) add a small splash of pickle brine or vinegar and a little garlic or onion flavor to make it taste more “counter-service classic” than just pink mayo.

What is the best mayo to use?

Use whatever you like on sandwiches. A full-fat mayo (like Hellmann’s or Duke’s) gives the richest result. If you use a lighter mayo, the sauce will taste a bit tangier and less plush.

Can I make fry sauce without ketchup?

You can, but it stops being that classic flavor. If you are out of ketchup, try chili sauce (the mild, ketchup-y kind) or even a mix of tomato paste + a pinch of sugar + a splash of vinegar.

Why does my fry sauce taste too sweet?

Different ketchups vary. Fix it with more vinegar or pickle brine, a pinch more salt, or a little extra mustard.

Why does my fry sauce taste too “mayonnaise-y”?

Add a bit more ketchup, plus a touch of garlic powder and vinegar. Also make sure you are adding salt. It is small, but it matters.

How long should it sit before serving?

You can eat it immediately, but 10 minutes in the fridge makes it taste more cohesive. If you have 30 minutes, even better. Overnight is also great if you want the flavors to fully settle.

Is fry sauce vegetarian?

It can be. Worcestershire sauce often contains anchovies. If you want a vegetarian version, skip it or use a vegetarian Worcestershire.

I love sauces because they are the fastest way to make a basic dinner feel intentional. Fries are great, sure, but fries plus a dip that has tang, salt, and a little mystery? That is the difference between “snack” and “I should probably sit down for this.” Fry sauce is my go-to when I want something fun and low drama. I start with the Utah-inspired base, then tinker from there: more pickle brine, a smoky pinch, maybe full garlic mode. It is chaotic in the best way, and it makes weeknight food feel like a treat.