Why You’ll Love Oklahoma Onion Burger Recipe
This burger is simple yet packed with bold flavor. The smashed patty cooks quickly, developing a crispy crust, while the onions soften and caramelize into the meat for a unique taste. It uses minimal ingredients, cooks fast, and delivers that authentic diner-style experience at home.
Ingredients
(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)
1 pound ground beef (80/20)
4 teaspoons avocado oil
1 large sweet onion, peeled and very thinly sliced
4 hamburger buns
coarse salt
freshly cracked pepper
optional pickles
optional American cheese slices
optional yellow mustard
Directions
Divide the ground beef into four equal portions and shape them into loose balls.
Heat a large cast-iron skillet or griddle over medium-high heat. Add the avocado oil, using about 1 teaspoon per burger if cooking in batches.
Place the beef balls onto the hot surface, spacing them apart. Using parchment paper and a spatula or a burger press, smash each ball down until it is about ¼ to ½ inch thick.
Season the patties immediately with salt and pepper. Add a generous amount of thinly sliced onions on top of each patty, spreading them evenly. Lightly season the onions with salt.
Cook for about 90 seconds, allowing the bottom to develop a deep brown crust.
Flip the burgers so the onions are now in contact with the pan. Cook for another 90 seconds until the onions are softened and caramelized.
Stack the top and bottom buns on the burger briefly to steam for 20 to 30 seconds, then remove and toast them in the pan.
Transfer the burger to the bottom bun, add cheese if desired, and finish with pickles, mustard, or your favorite toppings. Place the top bun on and serve immediately.
Servings and timing
Servings: 4
Prep time: 10 minutes
Cook time: 12 minutes
Total time: 22 minutes
Variations
Double up the patties for a heartier burger.
Use different cheeses like cheddar or pepper jack for added flavor.
Swap sweet onions with yellow or white onions for a sharper taste.
Add jalapeños for a spicy kick.
Serve on brioche or potato buns for a softer texture.
Storage/Reheating
Store leftover patties in an airtight container in the refrigerator for up to 2 days.
Reheat in a skillet over medium heat until warmed through to maintain texture.
Avoid microwaving if possible, as it can make the burger soggy.
For best results, assemble burgers fresh when ready to eat.
FAQs
What makes an Oklahoma Onion Burger different?
The onions are smashed directly into the beef and cooked together, creating a unique caramelized flavor.
Can I use lean ground beef?
You can, but 80/20 is recommended for better flavor and juiciness.
How thin should I slice the onions?
Very thin slices are best so they cook quickly and blend into the burger.
Do I need a cast iron skillet?
It is preferred for achieving a good crust, but any heavy pan or griddle can work.
Can I cook these on a grill?
A flat-top griddle works better, as the onions need a solid surface to cook properly.
What cheese works best?
American cheese melts smoothly, but cheddar or other varieties can be used.
Can I make these ahead of time?
They are best cooked fresh, but you can prep the onions and portion the meat in advance.
Why is my burger not crispy?
The pan may not be hot enough, or the patty was not smashed thin enough.
Can I add sauces?
Yes, mustard is traditional, but ketchup, mayo, or burger sauce also work.
What buns are best?
Soft hamburger buns, potato buns, or brioche buns are all great options.
Conclusion
The Oklahoma Onion Burger is a simple yet iconic dish that delivers big flavor with minimal ingredients. With its crispy smashed patty and caramelized onions, it is a must-try for burger lovers looking to recreate a classic diner experience at home.
