Special equipment: 4 toothpicks
To make the burgers:
In a large bowl mix the bison, beef sirloin, onions, garlic, and parsley until just combined. Add in the onion powder, garlic powder, seasoning salt, ketchup, Worcestershire, and a few turns of freshly ground black pepper. Add it all to the meat mixture and mix well to combine. Heat a large saute pan over medium-high heat and cook a small portion of the meat. Taste the cooked beef to see if you need to add salt. Add salt to the meat mixture to taste. Divide the meat into 4 evenly portioned round patties and set aside.
To make the onions:
Heat the bacon fat over medium-high heat in a large saute pan and add the onions. Cook for 1 minute, then season with salt. Cook the onions, stirring a lot, until they start to turn brown. If the onions start sticking to the pan and turning too dark, pour in a spoonful of water and scrape with a wooden spoon to pull them off the pan. Continue to cook and stir the onions until they're dark brown and caramelized, about 8 to 10 minutes. Turn off the heat and set aside.
To make the mayonnaise:
In a bowl, combine the mayonnaise, parsley, garlic, salt, and pepper, to taste and mix well.
Reheat the large skillet over medium-high heat and drizzle in some olive oil. Heat the olive oil then place the burger patties in the pan. Cook for 3 minutes on each side for medium-rare. Top the burgers with a slice of cheese. To assemble, spread some garlic mayo on the bottom of the toasted bun. Put the burger on the mayo, top with caramelized onions, and then arugula. Cover with a bun top. Stick a toothpick into a cornichon and then stick into the top of the burger and serve.
You may need less salt if you're using bacon fat as bacon tends to be salty.
This recipe was created by a contestant during a cooking competition. It has not been tested for home use.
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