Oklahoma Fried Onion Burgers are thin skillet burgers cooked directly over a mound of very thin sliced onions until the onions turn deeply browned and crisp around the edges. The patties are finished with American cheese and served on toasted buns with simple burger toppings.
This page used to be titled “Smothered Cube Steak,” but the recipe never contained cube steak at all. The ingredient list is ground beef, onion, American cheese, buns, mustard, mayo, and pickles, and the method is the classic fried-onion burger technique. I corrected the title and URL so the recipe now matches what readers are actually making.
Why the Onions Go Under the Beef
The onions are not just a topping added at the end. They cook underneath the beef first, where they pick up the butter, oil, and beef drippings and turn dark golden before the burger is flipped.
I like this method because the onion flavor becomes part of the patty instead of sitting separately on top. Pressing the beef onto the onion mound also helps the thin slices stay attached while the burger cooks.
Ingredients
- 1 large onion, peeled, halved, and very thinly sliced
- Salt and black pepper, to taste
- 1 pound ground beef
- 1 tablespoon butter
- 1 tablespoon vegetable oil
- 4 to 8 slices American cheese
- Mayonnaise, mustard, and pickles, for serving
- 4 hamburger buns, toasted
The Onion Step I Would Not Skip
Before cooking, the sliced onion is tossed with salt and left to stand in a colander for about 30 minutes. Then the onions are wrapped in a clean kitchen towel and squeezed firmly to remove excess moisture.
That step matters because wet onions steam. Drier onions brown more efficiently in the skillet and develop the crisp edges this burger is known for.
How to Make Oklahoma Fried Onion Burgers
- Toss the thinly sliced onion with about 1 teaspoon salt.
- Transfer the onions to a colander and let them stand for about 30 minutes, tossing once or twice.
- Spread the onions onto a clean kitchen towel, gather the towel around them, and squeeze out as much moisture as possible.
- Divide the onions into 4 equal mounds.
- Divide the ground beef into 4 lightly packed balls.
- Place one beef ball over each onion mound and press firmly until the beef forms a thin patty about 4 inches across and the onions adhere to one side.
- Season the exposed beef side with salt and black pepper.
- Heat the butter and vegetable oil in a large skillet over medium heat.
- Using a wide spatula, transfer the patties to the skillet onion-side down.
- Cook for about 6 to 8 minutes, or until the onions are deeply golden and crisp around the edges.
- Flip the burgers and increase the heat slightly.
- Cook the second side until well browned and the ground beef reaches 160°F in the center.
- Add 1 or 2 slices of American cheese to each patty and let the cheese melt.
- Place the burgers on toasted buns and add mayonnaise, mustard, and pickles as desired.
- Serve immediately while the onion edges are still crisp.
How Thin Should the Onions Be?
I want the onion slices thin enough to soften and brown during the same time the burger cooks. Thick half-moons take much longer and can stay crunchy in the center while the outside burns.
A sharp knife or mandoline makes this easier. If using a mandoline, use the hand guard and work carefully.
Why American Cheese Works Well Here
American cheese melts quickly and evenly over the hot, thin patties. That smooth melt is part of the classic diner-style feel of this burger.
If you prefer another cheese, mild cheddar or Colby can work, but they will melt differently and give the burger a stronger cheese flavor.
Serving Ideas
These burgers do not need many toppings. Pickles, mustard, and a little mayonnaise are enough to balance the sweet browned onions and melted cheese.
Serve them with fries, potato wedges, coleslaw, potato salad, or a simple green salad. For more ground-beef dinners, browse my beef recipes.
Storage and Reheating
These are best straight from the skillet because the onions lose some crispness after refrigeration. If you do have leftovers, refrigerate the cooked patties promptly and store the buns separately.
Reheat the patties in a skillet so the onion side has a chance to crisp again instead of becoming soft in the microwave.
Common Questions
Why squeeze the onions after salting them?
Removing excess water helps the onions brown rather than steam and gives them a better chance to develop crisp edges.
Can I make thicker burgers?
You can, but this method works especially well with relatively thin patties because the beef and onions cook in the same skillet at the same time.
How do I know the ground beef is safe to eat?
Use a food thermometer rather than judging by color. Ground beef should reach 160°F in the center.
