Oklahoma Onion Smash Burgers

Oklahoma Onion Smash Burgers

The perfect smash burger made on a griddle!

Course Main

Cuisine American

Keyword burgers, griddle

Prep Time 30

Cook Time 15

Servings

Calories 731kcal

Equipment

Ingredients

For the burgers

1 pound ground beef I prefer 80/20 or 85/15
2 large onions sliced thin. I recommend using a mandolin
kosher salt
ground black pepper
4 slices American cheese
4 hamburger buns
dill pickle chips
burger sauce from below

For the burger sauce (you will have some leftover)

½ cup mayonnaise
3 tablespoons ketchup
2 tablespoons prepared mustard
1.5 tablespoons sweet pickle relish
1.5 tablespoons hot sauce
1 teaspoon ground black pepper
1 teaspoon kosher salt

Instructions

For the burger sauce

Place all ingredients into a small bowl.
Whisk until combined and smooth.
Refrigerate until ready to use.

For the burgers

Divide the beef into 4 4 ounce pieces and form into balls. Do not pack them tightly, just handle them enough to form into balls. Cover and place into the fridge.
Slice the onions very thin. I recommend using a mandolin. Ideally, you want them so thin that you can read a newspaper through them! Thin is best!
Place the onions into a bowl and sprinkle with salt. Toss to coat well and let sit on the countertop for 20 minutes.
Preheat your griddle over high heat for 10 minutes. Add oil if needed.
Meanwhile, drain all of the water out of the bowl of onions. Then squeeze all of the water you can out of the onions. Squeeze and keep squeezing! Place the onions back into the dry bowl until ready to use.
Add the burger balls to the griddle, leaving plenty of room between them.
Lightly smash down the burgers and season well with salt and pepper.
Top each burger with onion and smash them down the rest of the way. You want the patties nice and thin.
Cook the burgers for 4 minutes (or a little longer if they are thicker). The steam from the meat will help cook the onion. Flip the patties so that they are onion-side down and season again. The patties and onions will start to get golden brown and crunchy along the edges.
After 2 more minutes add the cheese. Let it melt for for 2 minutes.
Place the bun tops over the burgers and top with the bun bottoms and cook another 2 minutes. If your griddle has a top, close the lid. You want to steam the buns.
Transfer the bun bottoms to a plate. Add the sauce and pickles.
Add a patty to each bun bottom along with a bun top and serve hot and juicy!

Notes

If you don't have a griddle, you can use a large cast iron skillet on the grill instead. You might not have enough room to make all 4 burgers at once.

Nutrition