Sarah's Oklahoma Onion Burger
Description
These Oklahoma diner style onion burgers with portobello mushrooms are pan-fried and simply delicious.
Ingredients
•
2 tablespoons salted butter
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1 tablespoon olive oil
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1 large onion, very thinly sliced
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1/2 teaspoon granulated garlic
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1 pound 85% lean ground beef
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1/2 teaspoon salt
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1 teaspoon Hamburger Seasoning
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1/2 cup sliced portobello mushrooms
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ground black pepper to taste
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4 slices Swiss cheese
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4 rolls rolls, hamburger, white, enriched, plain
Directions
1
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
Meanwhile, divide ground meat into 4 portions and shape into patties. Season with salt and seasoning.
3
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
Press down on the flipped patties to sink the onions into the meat.
5
Meanwhile, add sliced mushrooms to the skillet used for the onion and cook until softened, about 5 minutes.
6
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.