Ingredients for - Sarah's Oklahoma Onion Burger

1. Salted butter 2 tablespoons
2. Olive oil 1 tablespoon
3. Onion, very thinly sliced 1 large
4. Granulated garlic ½ teaspoon
5. 85% lean ground beef 1 pound
6. Salt ½ teaspoon
7. Hamburger seasoning 1 teaspoon
8. Sliced portobello mushrooms ½ cup
9. Ground black pepper to taste ½ cup
10. Swiss cheese 4 slices
11. Rolls, hamburger, white, enriched, plain 4 rolls

How to cook deliciously - Sarah's Oklahoma Onion Burger

1 . Stage

Heat a skillet over medium heat. Add butter and oil; heat until butter is melted. Add onion and garlic. Cook until onion is soft and translucent, about 5 minutes.

2 . Stage

Meanwhile, divide ground meat into 4 portions and shape into patties. Season with salt and seasoning.

3 . Stage

Heat a large skillet or flat-top over medium-high heat for a few minutes. Place patties into the hot skillet and smash with a spatula or bacon press. Hold patties down for 30 seconds, then cover each patty with some of the cooked onion. Cook for 2 minutes. Carefully flip burgers, making sure to scrape the browned bits off the skillet.

4 . Stage

Press down on the flipped patties to sink the onions into the meat.

5 . Stage

Meanwhile, add sliced mushrooms to the skillet used for the onion and cook until softened, about 5 minutes.

6 . Stage

Season patties with salt and pepper and place a slice of cheese on each. Cook until burgers have reached the desired doneness, 2 to 4 minutes more. Top each patty with leftover onion and mushrooms and serve on buns.