Your Pork Steak Sauce Burns at 265 Degrees: Brush It On Last, St. Louis Style
Revised October 22, 2026
What is a good St. Louis BBQ sauce recipe?
A good St. Louis BBQ sauce recipe is one ratio: six parts ketchup to one part cider vinegar to one part brown sugar, thinned with water and simmered low for 20 minutes. Yellow mustard, onion powder, garlic powder, cayenne and salt finish it. The sauce runs thin, sweet and tangy, with nothing thick or smoky in the pot.
Keep reading ↓Sauce a St. Louis pork steak too early and you will smell it before you see it: sweet going bitter, black creeping along the edges of the meat.
“The pork steak is the basis of what makes St. Louis the No. 1 barbecue sauce market,” says Louis Maull V, whose family produced the nation’s first commercially bottled barbecue sauce.
What is a good St. Louis BBQ sauce recipe?
A good St. Louis BBQ sauce recipe is mostly one ratio: six parts ketchup to one part cider vinegar to one part brown sugar, thinned with water and simmered low for 20 minutes until it runs off the spoon. Yellow mustard, onion powder, garlic powder, cayenne and salt finish it, and nothing in the pot is thick or smoky.
That burnt smell? Blame the sugar. Most barbecue sauces contain it, and by The Spruce Eats’ count sugar burns at about 265 degrees and a grate over hot coals blows right past that. So this thin sauce goes on last, brushed on only over low heat or at the end of cooking. Then comes the good part. The brush crosses the pork steak, the grate hisses, fat pops on the coals, and smoke rolls up past your knuckles.
The numbers back Maull up: St. Louisans, per capita, buy nearly twice as much sauce in a year as average Americans, St. Louis Magazine reports. Not Memphis. Not Kansas City. We are well ahead of both.
Turn a burner to low and set a medium saucepan on it. Two cups of ketchup go in, then half a cup of water, a third of a cup of apple cider vinegar and a third of a cup of brown sugar. Add two tablespoons of yellow mustard, a tablespoon each of onion powder and garlic powder, half a teaspoon of cayenne and a quarter teaspoon of salt. Stir now and then for 20 minutes. The kitchen fills with the sharp, sweet steam of hot vinegar and tomato, strong enough to sting your eyes if you lean over the pot.
It should come out thin but not watery: a ribbon off the spoon, not a dollop. The batch makes about 3 1/2 cups. Two cups of ketchup against a third of a cup of vinegar is six to one, the one number worth memorizing. Write it on the inside of a cabinet door and you will never need the card again. (The ratio comes from this St. Louis barbecue sauce recipe.)
Let the pot cool for 20 to 30 minutes and taste it cooled, not straight off the burner: cider vinegar first, sharp at the back of your tongue, brown sugar right behind it. Make it the day before the cookout, because the recipe says it is better after a day in the refrigerator. A squeeze bottle is the handy way to keep it, and it holds up to a week in the fridge or three to four months in the freezer.
The Pork Steak Gets Sauced Last
Now the meat. Ask the butcher for pork steaks, which are crosscut slabs of Boston butt. Cook the steak until it is nearly done, then slide it to the cooler side of the grill, or wait for the very end, and start brushing. Ribs follow the same rule: ask for St. Louis-style ribs, a squared-off rib slab codified by the USDA, and slather the sauce on three to four times toward the end of cook time. Brush a coat, let it go tacky, brush again, and each layer darkens a shade until the last one shines.
Why does St. Louis buy so much barbecue sauce?
Start with a grocer and a horse. Louis Maull started out selling groceries from a horse-drawn wagon in 1897. In 1926 he debuted Maull’s Barbecue Sauce, which means a St. Louis grocer beat H.J. Heinz to the barbecue sauce bottle by 22 years. Then look at how the city eats. In Kansas City, people say “let’s go get some” barbecue. In St. Louis, they say “let’s have a barbecue,” and they mean in the yard.
Before a summer weekend, St. Louis Magazine wrote, the shopping list is charcoal, pork steaks and barbecue sauce. Maull put the rest of it in one line: “The best barbecue you can find in St. Louis is not in a restaurant - it’s in your back yard.”
Maull’s formula has 20 ingredients. The pot above keeps the number far lower, and that is the quiet pleasure of making your own: one pot, one ratio, and a bottle in the fridge door with your handwriting on the tape.
Why is St. Louis sauce thinner than the Kansas City kind?
Kansas City sauce is the thick one. One barbecue restaurant’s guide to the regional styles describes Kansas City sauce as thick, sweet and tomato-based with a generous hit of molasses, the kind you spoon onto a rib. St. Louis sauce is tangier, thinner and less sweet, and it pours. Whatever smoke reaches your plate comes off your coals, because the St. Louis style has none of the liquid smoke you find in many Kansas City-style sauces. Standing in the sauce aisle? Flip the bottle over and read the label.
The difference comes from the cooking, not just the taste. St. Louis barbecue is usually done by grilling and saucing rather than low and slow, so the brush meets a pork steak that is already sizzling. A thick, sugary sauce would scorch before it soaked in. A thin one slides into the grain, hisses against the grate and sets into a sticky, tangy lacquer.
Sauce on the wedding shirt? The videographer catches it. Here is that price.
Whose Batch Wins When the Family Argues Over the Sauce?
Maull told St. Louis Magazine that for some people, their barbecue sauce recipe is a very central part of their lives. Anyone who has watched an uncle hover over the grill, tasting off a plastic spoon and refusing to say what is in the jar, knows that is not a joke. So make the base batch this weekend and write the ratio down. Next time, change one thing: more brown sugar for a sweeter house sauce, a splash more vinegar for a sharper one, a pinch more cayenne if your brother-in-law keeps asking where the heat went. Then let the table vote.
Cook first. Brush last. Keep it six to one.
People are asking
Where’s the best barbecue in St. Louis when you don’t want to make it yourself?
Pappy’s Smokehouse on Olive Street smokes its meats up to 24 hours over apple or cherry wood and serves four sauces on the side. C&K on Jennings Station Road has served since 1963 and still wraps its meat in its trademark sweet and tangy sauce. Go early: Pappy’s says it may close early if it sells out. Our guide to the best BBQ in St. Louis covers the rest, from Soulard to West County.
When you would rather eat somebody else’s sauce, our guide to the best BBQ in St. Louis and our local’s guide to where to eat in St. Louis point the way, and these are the next pages to read:
- St. Louis food traditions: what this city invented
- Soul food in St. Louis
- Where to eat in Soulard
- Mongolian BBQ in St. Louis and how to order it
Cooking for a crowd this weekend and short on time? Find the butcher who cuts St. Louis-style slabs and the caterer who can feed the whole block when you join St Louis Near Me Directory.
If you’re the butcher, the pitmaster or the caterer, this reader is already hungry. People planning a cookout are already looking here for the meat and the help, so list your business and get more customers before the coals are lit.
Frequently asked questions
What is Saint Louis style barbecue?
It is pork, usually ribs or pork steaks, grilled and then sauced rather than cooked low and slow, with a thin, sweet and tangy tomato sauce brushed on near the end. The ribs are a squared-off St. Louis-style slab, and the pork steak is a crosscut slab of Boston butt.
What is the difference between Kansas City and St. Louis BBQ?
Kansas City sauce is thick, sweet and heavy on molasses, and many Kansas City-style sauces use liquid smoke. St. Louis sauce is thinner, tangier and less sweet, with no liquid smoke. Even the language differs: Kansas City says “let’s go get some” barbecue, while St. Louis says “let’s have a barbecue” at home.
Will barbecue sauce burn at 225 degrees?
Not usually. Sugar burns at about 265 degrees, so a smoker held below that point lets a late coat of sauce set into a glaze. A hot grill is the real danger, which is why St. Louis cooks brush sauce on over low heat or at the end.
How do I make my own sauce at home?
Simmer 2 cups of ketchup, 1/2 cup of water, 1/3 cup of cider vinegar and 1/3 cup of brown sugar with mustard, onion powder, garlic powder, cayenne and salt over low heat for 20 minutes. Let it cool, then rest it in the refrigerator for a day. It keeps up to a week chilled.
What are the four styles of BBQ?
One barbecue restaurant’s guide names Texas, Carolina, Kansas City and Memphis as four of the most iconic regional styles. St. Louis is the backyard style those lists tend to skip: grilled pork, a thin tangy sauce, and a city that buys nearly twice as much sauce per person as the average American.
Is barbecue sauce good for diabetics?
It depends on how much you use. The homemade recipe on this page has about 6 grams of sugar and 7 grams of carbohydrate in each of its 28 servings. If you manage diabetes, measure the sauce instead of pouring it, and ask your doctor or dietitian how it fits your plan.
Written by a dedicated team of St. Louis locals who live, work, and play right here in the St. Louis metro. Founder Lane Forman and team are committed to building the region’s most trusted directory by verifying listings and connecting local businesses with loyal customers across Missouri and Illinois.