Oklahoma Fried Onion Burgers

We closed on the last house we bought and pulled into the driveway just after the sun went down. The U-Haul was still full. I crashed on a mattress on the floor without brushing my teeth. Then early the next morning, somebody knocked on the front door. I shuffled over half asleep. An older man stood there in coveralls holding a frayed piece of rope. He looked me dead in the eye and said, “Mornin’. You seen a goat?” Not “welcome to the neighborhood.” Just goat.

So I helped him look. We found her behind our garage chewing on a piece of cardboard I’d tossed out the night before. He said, “You owe me lunch. Sid’s at noon. I’ll buy you a real onion burger.” I didn’t even know what an onion burger was. But you don’t say no to a man who just walked you through your own backyard hunting livestock. He met me at Sid’s on Route 66 and pointed at the flat-top, where a guy was smashing thin patties into piles of paper-thin onions. “That’s how you make a burger,” he said. I took one bite. And I get it now (yowser!). El Reno earned its title.

Mine at home isn’t as smoky as a 100-year-old flat-top. But pretty close. Buttery onions sizzling under a smashed beef patty until the edges turn crispy and lacy. Sharp cheddar pooling into the onion layer. A soft squishy bun catching every drop of buttery juice. About 15 minutes start to finish in my cast-iron skillet.

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Why You’ll Love These Oklahoma Fried Onion Burgers

Ground beef and a bag of onions get you 90 percent of the way to dinner. No marinade. No special equipment. No trip to the grocery store for some weird ingredient you’ll use once and toss next year. You probably already have everything in your fridge right now. Including the buns in the bread drawer. You’re going from cold ground beef to cheese melted on a bun in 15 minutes flat. One skillet to wash. That’s it.

But the real reason to make these is the texture you get from smashing. The patty spreads out sooooo thin. And the edges go crispy and lacy where the beef and the onions meet. Sweet caramelized onions underneath the burger. And OMG that sharp cheddar cheese melting all over the top. The squishy bun catching every single buttery drip. My kids ask for these more than pizza. Highest compliment available in my house.

Ingredients:

• Ground beef
• Garlic powder
• Salt and pepper to taste
• Onion thinly sliced
• Butter unsalted
• Hamburger buns
• Cheddar cheese
• Additional toppings of your choosing

Ingredient Deep Dive

Ground Beef

I nearly always use an 80/20 ground chuck fat content. End of discussion. The fat content in these burgers matters because when you smash it, you’re pushing out a lot of the moisture. So if you start with 90/10 you’re going to end up with a hockey puck. In other words, a sad thin papery hamburger patty that’s already dry the second it lands on the bun.

The 20 percent fat renders down through the onions and into the bottom of the pan. Which is exactly what you want. Ground sirloin is a no-go. I tried it once and the burger was sad. 85/15 will work in a pinch if your store happens to be out of 80/20. Don’t go leaner than that.

Thinly Sliced Onions

And look. This is the part everyone wants to shortcut. Don’t. The onions have to be sliced as thin as you can possibly get them. I’m talking about translucent. I learned how to use a mandoline especially for making these burgers. And I highly recommend having one in your kitchen.

Don’t go thicker than about 1/8 of an inch. If it’s thicker than that, they don’t cook down enough underneath the patty. I like to use yellow onions because they caramelize sweeter. Something like Vidalia is perfect. White onions get sharp and a little weird under there. I’d skip them.

Cheddar Cheese

Confession. I’m a little flaky when it comes to these burgers. I go back and forth constantly between sharp cheddar and yellow American cheese. Depending on my mood at the time. I get more flavor with sharp cheddar. That tangy bite that’s perfect with the sweet onions. But American cheese is oh-so-melty. Like nothing else on this planet.

The American cheese creates this diner-style cheese curtain over the side of the patty. If you want something with a little more personality, stick with sharp cheddar. I absolutely refuse to be drawn into the cheese debate here. Ha. 

Hamburger Buns

You want a super squishy bun with this burger. Something like a soft white sandwich bun or plain potato bun is absolutely perfect. Brioche is too rich and the eggy sweetness fights the onions. Definitely no ciabatta. No pretzel buns. No artisan sourdough boules.

The bun has one job here. Soak up the buttery onion juices and hold the burger together while you eat it. You can toast your bun with butter if you want to. Warm it up in the same skillet right before you serve it. But you don’t have to toast. A cold bun straight from the bag is great for this too.

Step-by-Step Instructions for Making Oklahoma Fried Onion Burgers

Step 1: Season the beef and portion it out.

Drop the ground beef into a mixing bowl with the garlic powder, salt, and pepper. Mix gently with your hands. Just until the seasoning is streaked through. Then stop messing with it. Overworking the beef gives you a tough patty. Now divide it into equal balls. Each ball stays loose. You’re not packing them tight like meatballs. They need to flatten easily under the spatula in a minute.

Step 2: Melt the butter and lay down the onion piles.

Heat your skillet over medium and let the butter melt until it’s foamy and starts to sizzle. Then drop little piles of paper-thin onions right onto the pan. One pile per patty. Spread each pile to about the diameter of your burger. The onions should hit the butter with a soft sizzling sound. That’s exactly what you want to hear. They start cooking the second they touch the pan.

Step 3: Place the beef on top of the onions and smash hard.

Drop a ball of seasoned beef right on top of each onion pile. Then comes the fun part. Smash. Use your sturdy spatula to press the patty straight down into the onions. Push hard for about ten seconds. The patty should spread out wider than the onion pile and go thin and lacy at the edges. That’s the signature look of an Oklahoma onion burger.

Step 4: Let the onions caramelize underneath.

This is the part where you do nothing. Stand there and listen. The patty needs about six minutes on this side. The onions underneath are turning from white to amber and then to a deep golden brown. You’ll smell them going sweet and slightly smoky as they go. Resist the urge to peek. Lifting the patty too early breaks the contact and you lose the crispy crust we’re after.

Step 5: Flip, then melt the cheese on top.

Slide the spatula all the way under so you scrape up every bit of caramelized onion. Flip in one fast motion. The onion side now sits on top of the patty. Cook another two or three minutes until the beef hits your preferred doneness. Drop a slice of cheddar on top of the onions for the last minute. Cover the pan briefly so the cheese melts down over the sides.

Step 6: Place on buns and serve right away.

Slide each cheese-topped patty onto a soft squishy bun and add whatever toppings you like. Pickles. Mustard. More onions if you’re feeling brave. Anything else you’d love on your burger. Serve immediately while the cheese is still soft and the bun is steaming from the buttery juices below. These don’t hold well. Eat them right out of the skillet. Nobody minds the lack of plating.

Pro-Tips & Technique

First, the smash. You need a wide flat sturdy spatula and you have to press hard. Don’t go half-hearted with this. You need a full-body lean into the patty.

Let’s talk about the beef. You’re gonna mix it gently with the salt and pepper just until the seasoning is streaking through. Then stop. Immediately. You overwork the ground beef,  you’re going to have a tough and rubbery burger!

Two patties stacked gives you the diner double. Pepper jack instead of cheddar lets in a slow creeping heat. And dill pickles with yellow mustard make this taste like every greasy spoon you’ve stopped at on a road trip.

THANKS FOR PINING!

Serving & Pairing

You want sides that don’t compete with the burger but earn their seat next to it. A scoop of grandma’s old fashioned potato salad lands right at home. Some crispy fried pickles give you a sharp briny contrast against all the buttery beef. If you want something more substantial on the plate, salty oven baked potato wedges with a dipping sauce work great too.

For drinks, a crisp Pacifico or a tall Coors banquet is exactly the rural-Oklahoma road-trip energy this burger asks for. Skip the heavy IPAs because the hops fight the sweet onions. For a non-alcoholic pick, a thick old-fashioned chocolate malt is what every diner across the Plains poured next to these burgers for decades.

FAQs & Troubleshooting

Can I make these ahead of time?

Not really. These are a right-now burger. The crispy lacy edges go soft if you let them sit. And the bun gets soggy from the butter and onion juice within minutes. I’d save the cooking until you’re literally ready to eat.

How thin do the onions really need to be?

Paper thin. As close to translucent as your knife can get. If you’ve got a mandoline, use it. Onions sliced too thick won’t soften enough in the cook time and you’ll end up with raw crunchy oniony bits instead of sweet caramelization.

More good recipe ideas?

If you liked this recipe, make sure you check out these other delicious recipes, you are certain to love!

Meatballs and potatoes Soup – Looking for something on those nights that you don’t want to spend forever cooking? This meatball soup is hearty and happens to be reasonably easy to make, as well.

Guinness Shepherds Pie with Beef – I will never grow tired of eating shepherd’s pie! It has so many wonderful qualities and tastes so great it’s impossible not to beg for more.

Stuffed Sweet Potatoes – You get SO many nutrients from sweet potatoes. They fill you up and keep you healthy too.

Easy Beef Stew – I tend to make and eat beef stew all year long. I know some people only eat stews in the winter, but I’m telling you it’s next to impossible to go without this stew once you try it.