The fried onion burger is a point of pride for Okies. You can find a good one at nearly any small town burger joint. What started as an economical way to stretch ground beef is now considered the elite way to make a burger.
Thinly slice onions. Heat a large cast iron skillet over medium heat. Add oil and butter, heating to warm. Add onion slices and onion preserves, cooking until tender.
Combine ground beef with Head Country Championship Seasoning and garlic powder. Shape into 8 portions. Divide onion mixture between the burger patties.
Heat skillet or griddle to medium-high heat. Place each patty, topped with onions, onto the hot skillet, smashing with a spatula or burger press. Sprinkle with salt and pepper. Flip, cooking until burgers are done and edges are crisp. If you like cheese, add a slice of cheese to the burgers, letting it warm through and slightly melt.
Toast buns in the same skillet or in the oven. Spread mustard on buns. Place two patties between each set of buns. Serve with fresh fries, chips, or giant slices of watermelon.