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Oklahoma Onion Burgers are a version of grilled smash burgers but with a lot of onions. Quick and easy to make, this recipe can feed a crowd. Make it at your next party, game day or dinner. You know it won’t disappoint.

An assembled Oklahoma Onion Burger held by 2 hands.

Ingredients list for an Oklahoma Onion Burger

  • Ground Beef: pick an 80/20 blend for your burger patty. It has just the right levels of fattiness to make the patty flavorful and juicy.
  • American Cheese: while not a fan favorite, this is the perfect cheese to get the melty, gooey feel to a burger.
  • Onion: the crisped up onions give a nice savory crunch.
  • All Purpose seasoning: the perfect blend of salt, pepper, paprika and garlic provide the needed flavors to keep the Oklahoma OnionBurger from being bland.
  • Mustard: adds a nice tangy flavor in each bite.
  • Brioche buns: they are extra soft and tender. Their buttery flavor enhances any burger or sandwich

Step 1: How to make burger beef patties.

Small, evenly shaped round raw beef balls on a cutting board.

It’s called a smash burger because part of the recipe is smashing the ball of ground beef on the griddle. I like to start with 80/20 ground beef blend. It give the burgers enough fat for a juicy bite. I roll the ground beef into bigger than golf ball size. Do not season the meat. That will happen once the Oklahoma Onion Burger patties are flattened on the griddle.

For summer burgers using other protein, check out my Thai Chicken Burger for a leaner protein and sweet and spicy flavor or my Grilled Chorizo Burger for a spicy and creamy bite.

Recipe Tip

An 80/20 blend of ground beef has the ideal fat ratio to get a perfectly juicy burger. The higher the lean percentage, the drier the patty will be.

Also you need onion for this recipe and a lot of it! Using a mandoline, carefully slice very thin layers of an onion.

Thinly sliced onion.

Recipe Tip

If the mandoline are missing the veggie gripper, stick a fork in the onion, it will save your fingers when slicing.

Dad’s Seasonings

Must have grillin seasonings!

Step 2: How to grill the Oklahoma Onion Burgers

The ideal way to cook these is on a flattop grill. If you don’t have that, you can get a portable flattop that fits on the grates of your grill. Either way, I recommend doing it outside. It will keep the mess out of your kitchen.

Start by preheating the grill to a high heat. We want those burgers to have a nice crust and the only way to do that is to have a hot grill.

Oklahoma onion burger patties being smashed down on a griddle.
Seasoned smashed beef and onion patties on a griddle.

Place the ground beef rounds on the grill and add a handful of the shredded onions on each ball. Using a spatula smash the beef down. Press down hard and quick. The ball will flatten out, making a smashed patty. Season the top with Dad’s All Purpose rub and let it cook for about minute. These are very thin patties which don’t require a lot of time to cook.

Using your spatula, flip the Oklahoma Onion Burger patties and cook the other side. The onions will cook with the meat for a tasty mix. Finally, place a slice of cheese on top of the patty. Once the cheese is nice and melty, double stack the patties. Because what’s better than one patty? Two patties!

While this is cooking, take a few potato buns and toast them up on the grill.

Step 3: What is the ideal way to assemble an Oklahoma Onion Burger?

3 fully assembled Oklahoma Onion Burgers on a wooden cutting board.

Take your toasted buns and add just a little bit of mustard on the bottom. Next, add two patties right on top of that, top with a couple slices of pickles and that’s it. And just like that, you have your simple and tasty Oklahoma Onion Burger! Enjoy!

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Frequently Asked Questions:

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Oklahoma Onion Burger

Oklahoma onion burgers are a version of smash burgers but with a lot of onions. Quick and easy to make, this recipe can feed a crowd.
Prep Time: 15 minutes
Cook Time: 5 minutes
Servings: 4 People

Ingredients 

  • 1 lb 80/20 Ground beef
  • 8 American cheese
  • 4 Brioche buns
  • 1 Onion
  • 1 tbsp Dad's All Purpose rub
  • 1 tbsp Yellow mustard

Instructions 

  • Roll 8 equal sized balls from the ground beef.
  • Thinly slice a yellow onion.
  • Preheat the grill or flat top to a high heat.
  • Place the ground beef rounds on the grill and add a handful of the shredded onions on each ball. Using a spatula smash the beef down.
  • Season the top of the smashed patties with Dad's All Purpose rub.
  • Using your spatula, flip the patties and cook the other side. The onions will cook with the meat for a tasty mix. Finally, place a slice of cheese on top of the patty.
  • Once the cheese is nice and melty, double stack the patties and remove from the grill.
  • Lightly toast the potato buns.
  • Finally, take your toasted buns and add just a little bit of mustard on the bottom. Next, add two patties right on top of that, top with a couple slices of pickles and that's it. And just like that, you have your simple and tasty smash burger! Enjoy!

Notes

Beef:
  • An 80/20 blend of ground beef has the ideal fat ratio to get a perfectly juicy burger. The higher the lean percentage, the drier the patty will be.
 
American Cheese:
  • While not a fan favorite, this is the perfect cheese to get the melty, gooey feel to a burger.
Mandoline:
  • One of those essential kitchen tools! You will use it all the time.  All your veggies will be evenly sliced, without you stressing on how sharp the knife.
  • If are missing the veggie gripper, stick a fork in the onion, it will save your fingers when slicing.
Flat top:
  • The ideal way to grill the Oklahoma Onion Burgers is on a flat top grill or griddle. If you don’t have that, you can get a portable flattop that fits on the grates of your grill.
  • Either way, I recommend doing it outside. It will keep the mess out of your kitchen.

Nutrition

Calories: 817kcal | Carbohydrates: 43g | Protein: 37g | Fat: 55g | Saturated Fat: 27g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 13g | Trans Fat: 2g | Cholesterol: 266mg | Sodium: 1204mg | Potassium: 407mg | Fiber: 1g | Sugar: 2g | Vitamin A: 1120IU | Vitamin C: 2mg | Calcium: 516mg | Iron: 3mg
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About Maciek

I make easy meals that anyone can replicate at home. I’m not a professionally trained chef, just your average guy that likes to fire up the grill. So follow along and see what’s cooking today!

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