The regional table / Utah
Fry Sauce
Published October 23, 2026 · Utah
Utah has an origin story for this sauce with a name and a year in it, and the state's own newspapers support the name, the man and a sauce — but not the year, and not the word.
Searched in Utah's newspaper archive, which answers a browser and not a script, "fry sauce" returns 990 pages, and the oldest of them are a lesson in reading OCR rather than indexes. Eight papers across the state carry an apparent hit in November 1946 — the Sun Advocate, the Morgan County News, the Midvale Journal Sentinel, the Piute County News, the Provo Daily Herald, the Sugar House Bulletin, the Deseret News and the Ogden Standard-Examiner — and they are all the same War Assets Administration surplus advertisement, in which a column of military equipment runs "utensils ... chinaware ... pans fry sauce bake"; that is pans, fry and sauce, bake, read across by the scanner. The Logan Herald Journal of 8 June 1949 is a picnic cook set that "includes fry [pan], sauce pan[s], cups, plates, coffee pot". The first page where the words genuinely mean this condiment is 16 May 1964, and it ran the same Saturday in both Salt Lake dailies, the Tribune and the Deseret News: a drive-in advertising a quarter-pound burger "Made From Top Quality Prime Rib ... With Mayonnaise, Lettuce, Pickle, French Fries and French Fry Sauce". The campaign repeats almost weekly into September 1965, by which point the advertisement is naming five locations and boasting "WE GRIND OUR OWN" — and note that it lists mayonnaise and french fry sauce as two separate things, which tells you the sauce was already understood as its own article and not merely as mayonnaise by another name.
The man usually credited is Don Carlos Edwards of Arctic Circle, and the archive gives him to us in detail while withholding exactly the fact the story needs. A Salt Lake Tribune profile of 15 July 1956 has him "a native of Logan", born there on 6 October 1899 into "a pioneer Utah family"; it says that "it was on July 21 1921, when Cache Valley celebrated its 'discovery' by trapper Jim Bridger in Pioneer Day festivities, that Don started in the drive in business"; that "with his special sauce and limited capital he moved to Salt Lake City and established Don Carlos Barbecue at 827 S Main"; and that by that July he was president of "Arctic Circle Inc with 54 franchised outlets in Utah Idaho Arizona and Nevada". So a special sauce is in print, attached to this man, in 1956 — eight years before anyone printed the words french fry sauce. What the 1956 profile never does is name it. The earliest page I could verify where Arctic Circle itself uses the bare words is the Davis County Clipper of 13 January 1967, in a Bountiful advertisement for an "Arctic Circle FAMILY DINNER — Barrel of Ranch Fried Chicken ... Hot Rolls ... Honey ... Fry Sauce" with "Free gallon of Root Beer with Each Barrel of Chicken". Edwards's funeral notice runs in the Tribune of 29 December 1971. Put together: the sauce existed by 1956 and belonged to him, the compound name appears in a competitor's advertisement in 1964, Arctic Circle is printing the short name by 1967, and who coined it and in which year is not a question this archive answers. Nobody cooks for this site; the proportions below were worked out for this page from the two federal standards that govern what goes into it.
Why this version works
Ketchup already contains the vinegar, the sugar and the spice, by law. The standard of identity at 21 CFR 155.194 does not merely permit those things, it requires one or more from each of three categories to be added to the tomato: "(i) Vinegars. (ii) Nutritive carbohydrate sweeteners ... (iii) Spices, flavoring, onions, or garlic." So the ketchup in the bowl is doing four jobs at once — acid, sugar, seasoning and colour — and that is why the classic two-ingredient version tastes finished rather than unseasoned. It also explains why substituting tomato paste or passata fails: you would have to rebuild all three categories yourself, and at that point you are making a different sauce.
The two parents are near-opposites, which is the whole point of mixing them. USDA puts mayonnaise at 74.8 grams of fat, 21.6 grams of water and 0.57 grams of sugar per hundred; catsup at 0.1 grams of fat, 68.5 grams of water and 21.3 grams of sugar. One is three-quarters oil with no sweetness; the other is two-thirds water with a fifth of its weight in sugar. Blend them two to one and the arithmetic gives you a sauce at about 50 grams of fat and 7.5 grams of sugar per hundred — rich enough to coat a hot chip without sliding off, sweet enough to register against salt, and wet enough to pour. Neither parent can do that alone, which is why no amount of thinning mayonnaise or thickening ketchup produces this.
The ketchup has a legal consistency, and it sets the thickness you are diluting. The same catsup standard sets a quality test that reads like a kitchen experiment conducted by lawyers: "The consistency of the finished food is such that its flow is not more than 14 centimeters in 30 seconds at 20 °C when tested in a Bostwick Consistometer" — level the instrument with a spirit level, fill the chamber "slightly more than level full", strike it off with a straight edge, release the gate "by gradual pressure on lever", start the stopwatch, read "to the nearest 0.1 centimeter", and repeat a third time if two readings differ by more than 0.2 centimetres. Fail it and the label may say "Below Standard in Quality—Low Consistency". A thin, watery supermarket ketchup is a measurably different ingredient from a thick one, and in a three-ingredient sauce it shows: start at two to one, then judge by eye and add ketchup by the teaspoon.
Mayonnaise is at least 65 percent oil and the emulsion is what carries everything else. 21 CFR 169.140 requires that mayonnaise "contains not less than 65 percent by weight of vegetable oil", built on egg yolk and on vinegar or "Lemon juice and/or lime juice". That oil-in-water emulsion is the delivery system: fat coats the tongue and holds the paprika, the garlic and the tomato in suspension so they arrive together instead of in sequence. Salad dressing and light mayonnaise both fall below that oil figure and both make a thin, sharp, slightly gluey fry sauce. Use the ordinary full-fat kind, and if you want it looser use brine rather than water, because water dilutes the emulsion and brine adds acid as it thins.
Ingredient notes
The ketchup: a third of a cup, and the thicker the better. Taste it on its own first, because brands differ by more than people expect — 21.3 grams of sugar and 907 milligrams of sodium per hundred grams is the ordinary figure, and a sweeter brand will push the finished sauce towards orange and towards dessert. If yours is thin, use a tablespoon less and make up the volume with brine. Do not substitute tomato paste, passata or a tomato sauce; the standard obliges ketchup to carry vinegar, sweetener and spice, and those are three of the things you are buying.
The seasoning: half a teaspoon of sweet or smoked paprika, a quarter-teaspoon each of garlic powder and onion powder, a few drops of Worcestershire sauce and plenty of black pepper. Powders rather than fresh here: fresh garlic turns harsh in a cold emulsion within a day, and fresh onion weeps. Paprika is the one addition you can see as well as taste, and it is what makes the colour read as a sauce rather than as diluted ketchup. Salt nothing — between them the two base ingredients already bring around 726 milligrams of sodium per hundred grams.
The mayonnaise: two-thirds of a cup of full-fat mayonnaise, the plain commercial sort rather than a homemade aioli or anything with mustard already in it. This is not a place to be precious: the sauce was invented on a drive-in counter out of a catering tub, and a bright homemade mayonnaise with a strong olive-oil note fights the ketchup instead of carrying it. What matters is the oil figure. Anything sold as light, reduced-fat or salad dressing sits below the 65 percent the standard requires of mayonnaise and gives a thinner, sharper result.
The brine and the acid: a tablespoon of dill pickle brine straight from the jar, which loosens the sauce and sharpens it in one move. This is the ingredient that separates a good fry sauce from the two-ingredient version, and brine rather than vinegar because it brings salt and dill with its acid. A teaspoon of the liquid from pickled jalapeños does the same job with heat. Lemon juice works at a pinch; plain water does not, because it dilutes without correcting anything.
Step by step
- Measure the mayonnaise into a bowl first. Put the two-thirds cup of mayonnaise into a small bowl and stir it loose with a spoon before anything else goes in. Starting with the fat and adding the water phase to it, rather than the other way round, keeps the emulsion stable and stops the ketchup streaking.
- Add the ketchup a third at a time. Stir in the ketchup in two or three additions, mixing fully between them, until the colour is an even pale salmon pink with no marbling left. Two to one by volume is the starting point and the colour is the real guide: pale cream means too little ketchup to taste, and anything approaching orange means too much.
- Loosen with the brine. Stir in the tablespoon of pickle brine. The sauce will slacken noticeably and brighten in flavour at the same time. If it is still stiffer than double cream, add brine half a teaspoon at a time rather than water.
- Season, then taste on something fried. Add the paprika, garlic powder, onion powder, Worcestershire and black pepper and stir until no specks of powder are visible. Then taste it on a hot chip rather than off a spoon — fat and salt read completely differently against something hot and starchy, and a sauce that seems correct on a spoon is usually under-seasoned on a chip.
- Rest it for twenty minutes. Cover and leave it at room temperature for 20 minutes, or in the fridge for an hour. The powders need time to hydrate, and a sauce served straight away tastes of raw paprika and separate parts. This is the only waiting in the recipe and it is the difference between a mixture and a sauce.
- Stir again and serve cold. Give it a final stir, because a little liquid comes to the top as it stands, and serve it cold against hot food — that contrast is the point of the thing. Put it out in a ramekin per person rather than one shared bowl, which is how every drive-in in Utah does it and avoids the double-dipping argument entirely.
Nearly everything that goes wrong here is a proportion and can be corrected in the bowl. Too pale and bland means not enough ketchup: add it a teaspoon at a time until the colour is pink rather than cream. Cloyingly sweet or distinctly orange means too much ketchup, or a very sweet brand, and the fix is a spoonful more mayonnaise plus a little extra brine to keep the acid up. A thin, runny sauce usually means a watery ketchup or water used to loosen it — more mayonnaise is the only real repair. If it tastes flat despite being correctly proportioned, it is missing acid rather than salt, so add brine and not more seasoning. And if it has separated after a few days in the fridge, with a watery layer on top, it has simply stood too long; stir it hard and use it today, or start again, which takes five minutes.
Storage and make-ahead
Keeps a week in a covered jar in the fridge, which is about as long as the pickle brine and the fresh-tasting paprika hold up. It cannot be frozen: a 50-percent-fat emulsion separates on thawing and does not come back together. Expect a little liquid to rise after the second day and stir it back in rather than pouring it off, since that liquid is where much of the acid is.
Make it the day before if you can, because the resting that improves it in twenty minutes improves it more in twelve hours. Double or triple the quantity freely — it scales exactly, which is the other reason it became a drive-in standard. If you are making a large batch for a party, hold back the brine until the day you serve it, because the sauce slackens slowly as it sits and a batch loosened on Monday is thin by Thursday.
What to serve with it
Chips, obviously, and specifically thick-cut ones with a dry floury interior, which is what the sauce was designed around. Beyond that it belongs on anything fried or griddled: onion rings, fried cheese curds, a pastrami burger, fish and chips, tater tots, fried chicken — the January 1967 Arctic Circle advertisement puts it next to a barrel of ranch fried chicken and a gallon of root beer, which is a better guide than any modern menu. It also does honest work as a burger sauce, which is how the 1964 advertisement implies it was already being used.
What it does not want is anything delicate or anything already creamy. Keep it away from salads, steamed vegetables and good fish. To drink alongside, the drive-in answer and still the right one: a cold cane-sugar soda, a root beer, or a milkshake, on the principle that a sauce this rich wants something cold and sweet rather than something that tries to balance it.
From the recipe box / Utah
Fry Sauce
Two parts mayonnaise to one of ketchup, loosened with pickle brine and lifted with paprika — Utah's drive-in condiment, dated here to a 1964 Salt Lake advertisement and an Arctic Circle one of January 1967, with the man usually credited already selling "his special sauce" in 1956.
- Prep
- 5 min
- Cook
- 0 min
- Total
- 25 min
- Serves
- 8
- Calories
- 150 per serving
Instructions
- Stir the mayonnaise loose in a small bowl.
- Add the ketchup in two or three additions, mixing fully, until the colour is an even pale salmon pink.
- Stir in the pickle brine to loosen and sharpen it.
- Add the paprika, garlic powder, onion powder, Worcestershire and pepper and stir until no specks remain; add no salt.
- Cover and rest 20 minutes at room temperature so the powders hydrate.
- Stir again and serve cold, a ramekin per person, against hot food.
Nutrition
| Fat | 15 g (2 g saturated) |
|---|
| Sodium | 230 mg |
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| Protein | 0 g |
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| Serving | about 2 tablespoons |
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| Calories | 150 |
|---|
| Cholesterol | 10 mg |
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| Carbohydrates | 3 g (2 g sugar, 0 g fiber) |
|---|
Nutrition is an estimate calculated from the listed ingredients and is provided as
a courtesy, not as dietary advice.
Questions readers ask
What proportion is correct?
Two to one, mayonnaise to ketchup, is the usual Utah ratio and the one that gives the numbers the sauce is known for — about 50 grams of fat and 7.5 grams of sugar per hundred when you work it out from the USDA figures for the two components. One to one is a sweeter, redder, more Thousand Island sort of sauce; three to one is paler and tastes mostly of mayonnaise. Judge by colour rather than by measuring spoon, because ketchups differ enough in thickness and sugar that a fixed ratio gives different results from different bottles — the federal consistency test allows anything that flows up to 14 centimetres in 30 seconds to be sold as standard quality.
Is it really just mayonnaise and ketchup?
At a drive-in, essentially yes, and the two-ingredient version is perfectly good because ketchup is obliged by 21 CFR 155.194 to contain vinegar, a nutritive sweetener and "Spices, flavoring, onions, or garlic" — it arrives pre-seasoned. The additions in this recipe are doing two specific jobs rather than showing off: pickle brine supplies acid and thins the emulsion in one move, and paprika plus the two powders put back the savoury depth that gets diluted when you cut ketchup with half again its volume of fat. If you want the plain original, use two parts mayonnaise to one of ketchup and stop.
Did Don Carlos Edwards invent it, and when?
He had a sauce and it was his trademark, and that much is in print in his lifetime: the Salt Lake Tribune profile of 15 July 1956 says that "with his special sauce and limited capital he moved to Salt Lake City" and established Don Carlos Barbecue at 827 S. Main, and that he was by then president of Arctic Circle Inc. with 54 franchised outlets across four states. What that profile does not do, in a long piece devoted to him, is give the sauce a name. The earliest printing of a name I can verify is a rival drive-in's advertisement of 16 May 1964 calling it "French Fry Sauce", and the earliest I can verify Arctic Circle itself using the short form is 13 January 1967. So a specific invention year — 1948 is the one usually given — is not something Utah's own newspapers support or refute. The sauce is his; the date and the christening are not on the record.
How is it different from Thousand Island or burger sauce?
Mostly by what is left out. Thousand Island carries chopped pickle or relish and often egg, which makes it a dressing with texture; a burger sauce usually adds mustard and sometimes sugar on top of the ketchup. Fry sauce is smooth, and it is built to be dipped into rather than spread, which is why the consistency question matters more than it does for either of the others. The family resemblance is real and nobody in Utah minds the comparison, but a fry sauce with relish in it has become something else, and one with mustard in it reads immediately as a burger sauce.