Oklahoma onion smash burger is thin, juicy, crispy, and packed with sweet onion flavor. This Oklahoma onion smash burger recipe uses simple ingredients and a hot skillet.
Thinly sliced onions cook directly under the beef patty. They become soft, golden, and slightly caramelized while the burger cooks.
Add melted American cheese, a toasted bun, and your favorite sauce. This classic-style smash burger is perfect for a quick lunch, dinner, or weekend burger night.
My Personal Story With This Dish
I have always loved burgers with crispy edges and plenty of flavor.A traditional thick burger is delicious. However, sometimes I want something faster and more exciting.
That is why I love the Oklahoma onion smash burger.The first time I tried this style, the onions surprised me.
The onions were placed directly under the beef patty. As the burger cooked, the onions became soft and golden.
They also added delicious sweetness to the beef.The thin patty developed crispy edges from the hot cooking surface.
The melted cheese brought everything together perfectly.I also loved how simple the recipe was.
There was no need for complicated ingredients or special equipment.A hot skillet, good ground beef, thin onions, and a soft bun were enough.
Now, this burger is one of my favorite homemade smash burgers.It is quick enough for busy evenings. It also feels special enough for a weekend meal.
The combination of crispy beef, sweet onions, melted cheese, and a toasted bun is hard to resist.

A Quick History and Fun Facts About Oklahoma Onion Smash Burger
The Oklahoma onion burger is strongly connected with Oklahoma burger culture.This burger style became popular during the difficult economic period of the 1920s and 1930s.
Onions helped stretch a smaller amount of ground beef. This made burgers more affordable for customers and restaurants.
Thinly sliced onions were placed on the cooking surface. A beef patty was then smashed over the onions.
The onions cooked directly into the burger.This created a delicious combination of beef flavor and sweet onion taste.
The burger also developed crispy edges from the hot griddle.Today, the Oklahoma onion burger remains a popular regional burger style.
Modern smash burger recipes often use similar cooking techniques.The key features include thin beef patties, a hot cooking surface, thin onions, and crispy edges.
American cheese is also a popular topping because it melts smoothly.
You can make this burger at home with simple ingredients.
Recipe Card Info
- Recipe Name: Oklahoma Onion Smash Burger
- Servings: 4
- Prep Time: 10 minutes
- Cook Time: 15 minutes
- Total Time: 25 minutes
- Course: Main Course
- Cuisine: American
- Calories: 620 kcal per serving
Kitchen Tools You Will Need
- Large cast iron skillet or flat griddle
- Sharp knife
- Cutting board
- Large spatula
- Burger press or sturdy spatula
- Mixing bowl
- Measuring spoons
- Small bowl for sauce
- Butter knife
- Serving plate
Simple Ingredients for Oklahoma Onion Smash Burger
- 1 pound ground beef, preferably 80/20
- 2 large yellow onions, very thinly sliced
- 4 hamburger buns
- 4 slices American cheese
- 1 tablespoon butter
- 1 tablespoon vegetable oil
- 1 teaspoon salt
- ½ teaspoon black pepper
- ½ teaspoon garlic powder
- ¼ cup mayonnaise
- 2 tablespoons ketchup
- 1 tablespoon yellow mustard
- 1 tablespoon sweet pickle relish, optional
Cooking Instructions for Oklahoma Onion Smash Burger
1. Slice the Onions
Peel the onions and slice them very thinly. Thin slices cook quickly and become soft, sweet, and golden underneath the smashed beef patty.
2. Prepare the Beef
Divide the ground beef into four equal portions. Gently shape each portion into a loose ball without packing the meat too tightly.
3. Mix the Burger Sauce
Add mayonnaise, ketchup, mustard, and pickle relish to a small bowl. Stir everything together until smooth, then refrigerate until serving.
4. Heat the Skillet
Place a cast iron skillet over medium-high heat. Allow it to become very hot before adding the beef and onions.
5. Add the Onions
Add a small pile of sliced onions to the hot skillet. Spread each pile slightly so the onions cover the burger area.
6. Add the Beef Ball
Place one beef ball directly over the sliced onions. Work quickly because the hot skillet should immediately begin cooking the beef.
7. Smash the Burger
Press the beef firmly into the onions using a sturdy spatula. Smash until the patty becomes thin and the onions stick underneath.
8. Season the Patty
Sprinkle salt, black pepper, and garlic powder over the smashed patty. Season lightly because the onions and cheese also add flavor.
9. Cook the First Side
Cook the patty for about two to three minutes. Let the bottom develop a dark, crispy crust before flipping it carefully.
10. Flip the Burger
Slide your spatula underneath the patty and flip it quickly. Keep the onions attached to the burger during the flip.
11. Add the Cheese
Place one slice of American cheese over the hot patty. Allow it to melt completely while the second side finishes cooking.
12. Toast the Buns
Spread butter on the cut sides of the buns. Toast them in the skillet until lightly golden and warm.
13. Assemble the Burger
Spread the prepared sauce over the toasted bun. Add the cheesy onion patty, then cover it with the top bun.
14. Serve Immediately
Serve the Oklahoma onion smash burger while it is hot. Add pickles, extra sauce, or other toppings according to your preference.
Simple Tips for Better Results
- Use ground beef with enough fat for juicy burgers.
- An 80/20 beef blend works especially well.
- Slice the onions as thinly as possible.
- Use a very hot cooking surface.
- Do not press the burger after flipping.
- Smash the beef only once.
- Use a sturdy metal spatula for better pressure.
- Keep the beef loose before smashing.
- Avoid overworking the ground beef.
- Cook the burgers in batches if necessary.
- Do not overcrowd the skillet.
- Use American cheese for excellent melting.
- Toast the buns for better texture.
- Serve the burger immediately after cooking.
- Keep toppings simple to highlight the onions and beef.
Best Way to Serve
The best way to serve an Oklahoma onion smash burger is hot from the skillet. The crispy beef edges and melted cheese taste best immediately.
Add a creamy burger sauce, mustard, ketchup, pickles, or sliced jalapeños. A toasted bun adds a warm, slightly crisp texture. Serve the burger with crispy fries, onion rings, potato wedges, or a simple salad.
Keep the toppings balanced because the sweet onions and crispy beef already provide plenty of flavor.
Nutrition Facts You Should Know
The nutrition information below is an estimate. Exact values may vary based on the ingredients and toppings used.
| Nutrient | Amount Per Serving |
|---|---|
| Calories | 620 kcal |
| Carbohydrates | 43 g |
| Protein | 32 g |
| Total Fat | 36 g |
| Saturated Fat | 13 g |
| Fiber | 3 g |
| Sodium | 980 mg |
| Sugar | 8 g |
Tasty Sides That Go Well With Oklahoma Onion Smash Burger
Crispy French fries are one of the best sides for this burger.The crunchy potatoes pair perfectly with the juicy beef and soft bun.
You can also serve the burger with sweet potato fries. Their natural sweetness complements the caramelized onions.
Onion rings are another delicious option. Their crunchy texture creates a tasty contrast with the soft burger.
Potato wedges also make a hearty side dish.For a lighter option, serve the burger with a fresh green salad.
Pickles are also a classic side. Their tangy flavor helps balance the rich beef and cheese.
You can also serve coleslaw for a creamy and refreshing contrast.
Easy Storage and Reheating Guide
This burger tastes best when served immediately.
If you have leftover cooked patties, store them in an airtight container.
Keep the patties refrigerated for up to three days.
Store the buns and toppings separately whenever possible.
To reheat the patty, use a skillet over medium heat.
Warm it for a few minutes on each side until heated through.
You can also use an oven for gentle reheating.
Avoid reheating the fully assembled burger when possible.
The bun may become soggy, and the fresh toppings may lose their texture.
For the best results, assemble the burger again after reheating the patty.
FAQs About Oklahoma Onion Smash Burger
What makes an Oklahoma onion smash burger different?
The main difference is the thinly sliced onions cooked directly under the smashed beef patty. This creates sweet onions and crispy beef together.
What type of beef is best for this smash burger?
Ground beef with around 20 percent fat works very well. The extra fat helps create juicy meat and delicious crispy edges.
Can I use white onions instead of yellow onions?
Yes, you can use white onions. Yellow onions provide a naturally sweet flavor, but white onions also work well.
Why should the onions be sliced very thinly?
Thin onions cook quickly and soften underneath the beef. They also caramelize better while the burger develops its crispy crust.
Can I make this burger without American cheese?
Yes, you can use cheddar, Swiss, or another melting cheese. American cheese is popular because it melts smoothly and evenly.
Last Words on This Recipe
The Oklahoma onion smash burger is a simple burger with incredible flavor.It uses basic ingredients but creates a truly satisfying meal.
Thin onions cook directly under the beef patty. They become soft, sweet, and golden.he beef develops crispy edges while remaining juicy inside.
Melted cheese adds a creamy texture to every bite.A toasted bun and simple burger sauce complete the recipe.
The most important steps are using thin onions and a very hot skillet.Do not overwork the beef before cooking.
Also, avoid pressing the burger after flipping it.These simple tips help create a delicious homemade smash burger.
Serve it with fries, onion rings, pickles, or your favorite side dish.
Whether you are cooking for family or enjoying a weekend burger night, this recipe is a great choice.
Once you try this Oklahoma onion smash burger, you may want to make it again and again.

Oklahoma Onion Smash Burger Recipe
Ingredients
Method
Notes
- Use ground beef with enough fat for juicy burgers.
- An 80/20 beef blend works especially well.
- Slice the onions as thinly as possible.
- Use a very hot cooking surface.
- Do not press the burger after flipping.
- Smash the beef only once.
- Use a sturdy metal spatula for better pressure.
- Keep the beef loose before smashing.
- Avoid overworking the ground beef.
- Cook the burgers in batches if necessary.
- Do not overcrowd the skillet.
- Use American cheese for excellent melting.
- Toast the buns for better texture.
- Serve the burger immediately after cooking.
- Keep toppings simple to highlight the onions and beef.

Delilah is a home cook and food blogger who shares simple, comforting, and easy recipes for everyday cooking. She focuses on quick meals, desserts and family-friendly dishes with clear, step-by-step instructions to make cooking easy and enjoyable for everyone.

